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Difference between revisions of "Prototype 2"

From PCGamingWiki, the wiki about fixing PC games
m (General maintenance with AutoWikiBrowser in Bot mode)
(Improve some refs or replace them with more reliable ones + make keypoint more objective and supply extra info + general cleanup of issues (of like old, incomplete, unstable or irrelevant issues or fixes))
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'''Key points'''
 
'''Key points'''
{{--}} Widely criticised as being a very poor PC port with a very large number of issues.<ref>https://www.youtube.com/watch?v=KJ5l4L_3RxY</ref><ref>https://www.pcgamer.com/review/prototype-2-review/</ref>
+
{{--}} The PC port suffers from a number of technical issues and limitations.<ref name="pcgamer review">{{Refurl|url=https://www.pcgamer.com/prototype-2-review/|title=PROTOTYPE 2 REVIEW - PC Gamer|date=2022-09-02}}</ref><ref>{{Refurl|url=https://www.youtube.com/watch?v=KJ5l4L_3RxY|title=WTF Is... - Prototype 2? - TotalBiscuit - YouTube|date=2022-09-02}}</ref>
  
 
'''General information'''
 
'''General information'''
Line 82: Line 82:
 
# Download the file unlocker [https://community.pcgamingwiki.com/files/file/1981-colossal-mayhem-pack-excessive-force-pack-dlc-for-prototype-2/ here].
 
# Download the file unlocker [https://community.pcgamingwiki.com/files/file/1981-colossal-mayhem-pack-excessive-force-pack-dlc-for-prototype-2/ here].
 
# Extract the files to {{p|game}}.
 
# Extract the files to {{p|game}}.
# Enjoy.
+
# Start the game.
 
}}
 
}}
 
==Essential improvements==
 
===[https://www.reddit.com/r/PrototypeGame/comments/vgwq13/dxvk_makes_prototype_2_run_much_better_50_fps/ Use DXVK to Improve Performance]===
 
{{ii}} Improves framerate significantly
 
{{Fixbox|description=Install the DXVK file|fix=
 
#Download the [https://github.com/doitsujin/dxvk/releases Latest DXVK file] on github.
 
#Use WinRAR or 7-Zip or WinZIP to unpack the file and copy {{code|d3d9.dll}} from {{code|x32}} folder to your Prototype 2 installation folder.
 
#Launch the game.
 
}}
 
 
  
 
==Game data==
 
==Game data==
Line 173: Line 163:
  
 
===[[Glossary:Windowed|Windowed]]===
 
===[[Glossary:Windowed|Windowed]]===
{{Fixbox|description=Force windowed|ref={{cn|date=August 2017}}|fix=
+
{{Fixbox|description=[[Glossary:Windowed|Force windowed mode]]|ref={{cn|date=August 2017}}|fix=
# Download and run [https://sourceforge.net/projects/dxwnd/ DxWnd].
 
# Click on Edit, then Add.
 
# Set the path to <code>{{p|game}}\prototype2.exe</code>.
 
# Set the window size to the in-game resolution.
 
# Set Desktop for borderless fullscreen windowed.
 
# Click on DirectX tab, set DirectX9.
 
# Click OK, then File and Save.
 
# Start the game and adjust in-game resolution.
 
 
}}
 
}}
  
 
{{Fixbox|description=Windowed launch option|ref=<ref name=faq/>|fix=
 
{{Fixbox|description=Windowed launch option|ref=<ref name=faq/>|fix=
Use the <code>windowed</code> [[Glossary:Command line arguments|command line argument]].
+
Use the <code>-windowed</code> [[Glossary:Command line arguments|command line argument]].
  
 
'''Notes'''
 
'''Notes'''
 
{{--}} Mouse cursor is always visible and not captured to window.
 
{{--}} Mouse cursor is always visible and not captured to window.
}}
 
 
===Force on Fullscreen===
 
{{Fixbox|description=Force fullscreen|fix=
 
# Download and run [https://sourceforge.net/projects/dxwnd/ DxWnd].
 
# Click on Edit, then Add.
 
# Set the path to <code>{{p|game}}\prototype2.exe</code>.
 
# Under <code>Generic</code> tab, check <code>Fullscreen only</code>.
 
# Click on DirectX tab, set DirectX9.
 
# Click OK, then File and Save.
 
 
{{ii}} This option is valid only if you own multiple displays and you want to run the game in '''Fullscreen''' on your middle monitor.
 
{{ii}} Owning multiple displays on Windows 10 makes the game unable to run in '''Fullscreen''' (While moving the mouse fast, it will go out of the game boundaries and clicking will tab out the game). The above steps fixes the issue.
 
 
}}
 
}}
  
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===[[Glossary:Mouse acceleration|Mouse acceleration]]===
 
===[[Glossary:Mouse acceleration|Mouse acceleration]]===
{{--}} Mouse acceleration is tied to frame rate of the game, leading to extremely choppy control in periods of poor performance.<ref>https://www.reddit.com/r/Games/comments/xcfmu/a_warning_to_avoid_prototype_2_for_pc/c5l5ld3</ref>
+
{{--}} Mouse acceleration is tied to frame rate of the game, leading to extremely choppy control in periods of poor performance.<ref name="pcgamer review"/>
  
 
{{Fixbox|description=Use controller|ref={{cn|date=September 2016}}|fix=
 
{{Fixbox|description=Use controller|ref={{cn|date=September 2016}}|fix=
A controller will bypass the mouse acceleration problem.
+
{{ii}} Usage of a controller is unaffected by the mouse acceleration problem.
 
}}
 
}}
  
{{Fixbox|description=Limit frame rate|ref=<ref>[https://web.archive.org/web/20141206061844/http://forums.steampowered.com/forums/showthread.php?t=2843973 Possible Fix for mouse lag in Prototype 2 without using controller - Steam Users' Forums] (retrieved)</ref>|fix=
+
{{Fixbox|description=[[Glossary:Frame rate (FPS)#Frame rate capping|Limit frame rate to keep mouse acceleration constant]]|ref=<ref>{{Refurl|url=https://web.archive.org/web/20141206061844/http://forums.steampowered.com/forums/showthread.php?t=2843973|title=Possible Fix for mouse lag in Prototype 2 without using controller - Steam Discussion Forum|date=2022-09-02}}</ref>|fix=
See [[Glossary:Frame rate (FPS)#Frame rate capping|Frame rate capping]] to limit frame rate (for example, to 60 FPS) to limit mouse acceleration.
 
}}
 
 
 
{{Fixbox|description=Force adaptive Vsync outside of game|ref={{cn|date=April 2021}}|fix=
 
To fix the choppy mouselook camera, turn OFF Vsync in-game and turn ON adaptive Vsync in the Nvidia control panel.
 
 
}}
 
}}
  
Line 345: Line 309:
 
===No shadows with AMD/ATI graphics cards===
 
===No shadows with AMD/ATI graphics cards===
 
{{--}} Prototype 2 has a similar bug as with [[Prototype]], where shadows are not rendered properly on AMD/ATI Radeon cards.<ref>[https://web.archive.org/web/20141206061827/http://forums.steampowered.com/forums/showthread.php?t=2845269 Screenshot showing difference between Nvidia and ATI - Steam Users' Forums] (retrieved)</ref>  
 
{{--}} Prototype 2 has a similar bug as with [[Prototype]], where shadows are not rendered properly on AMD/ATI Radeon cards.<ref>[https://web.archive.org/web/20141206061827/http://forums.steampowered.com/forums/showthread.php?t=2845269 Screenshot showing difference between Nvidia and ATI - Steam Users' Forums] (retrieved)</ref>  
{{--}} This can lead to a very poor graphical quality.
 
 
{{--}} While there is [[Prototype#No shadows with AMD.2FATI graphics cards|a fix]] for [[Prototype]], there are no known fixes for Prototype 2.
 
{{--}} While there is [[Prototype#No shadows with AMD.2FATI graphics cards|a fix]] for [[Prototype]], there are no known fixes for Prototype 2.
 +
{{ii}} Unknown if this bug has been solved over the years through graphics driver updates.
 
<gallery>
 
<gallery>
 
File:Prototype_Nvidia.jpg|Prototype on Nvidia graphics card.
 
File:Prototype_Nvidia.jpg|Prototype on Nvidia graphics card.
Line 355: Line 319:
 
{{ii}} On some PC configurations it's impossible to complete the mission Operation Flytrap.  
 
{{ii}} On some PC configurations it's impossible to complete the mission Operation Flytrap.  
  
{{Fixbox|description=Set core affinity|ref={{cn|date=August 2015}}|fix=
+
{{Fixbox|description=Force game to use only one CPU core|ref={{cn|date=August 2015}}|fix=
 +
{{ii}} Advised to enable all cores for the game again after finishing this level for improved performance.
 
# Alt+tab out of the game
 
# Alt+tab out of the game
 
# Open task manager,  
 
# Open task manager,  
Line 363: Line 328:
 
}}
 
}}
  
{{Fixbox|description=Turn in-game vsync|fix=
+
{{Fixbox|description=[[Glossary:Frame rate (FPS)#Frame rate capping|Cap framerate to 60 or lower before starting the mission|fix
# Set refresh rate up to 60 Hz (higher frequency won't fix the issue)
 
# Turn in-game Vsync on
 
# Restart the mission
 
 
}}
 
}}
  
 
===Performance degrades over time===
 
===Performance degrades over time===
{{ii}} Prototype 2 has memory leak issues. The steps below help alleviate this.
+
{{ii}} Prototype 2 has possible memory leak issues that cause performance degradation after extended time of playing the game.{{cn|date=2022-09-02}}
  
{{Fixbox|description=Fix Data Execution Prevention setting|ref={{cn|date=September 2016}}|fix=
+
{{Fixbox|description=Workaround: Alt+tab to release memory|ref=<ref>[https://web.archive.org/web/20170520094551/http://forums.steampowered.com/forums/showthread.php?t=2844808 &#91;Temp. FIX&#93; Memory leak - Steam Users' Forums] (retrieved)</ref>|fix=
Ensure Data Execution Prevention (DEP) is set to the default (Windows programs and services only).
+
{{ii}} Appears to release 500-600mb of RAM, delaying the onset of a memory leak crash temporarily.
}}
 
 
 
{{Fixbox|description=Alt+tab to release memory|ref=<ref>[https://web.archive.org/web/20170520094551/http://forums.steampowered.com/forums/showthread.php?t=2844808 &#91;Temp. FIX&#93; Memory leak - Steam Users' Forums] (retrieved)</ref>|fix=
 
Alt+tabbing in and out of the game appears to release 500-600mb of RAM, delaying the onset of a memory leak crash temporarily.
 
 
}}
 
}}
  
 
==Issues fixed==
 
==Issues fixed==
===Unplayable frame rate in the main menu and ingame on a AMD card using Crimson driver===
 
{{ii}} Caused by Catalyst A.I. interfering with the game.<ref>https://steamcommunity.com/app/115320/discussions/0/451852225145790704/</ref>
 
{{ii}} Make note of the original key values that need to overwritten, as they will have to be reverted once the game is no longer actively played
 
{{Fixbox|description=(Windows 7) Disable Catalyst A.I. in the registry|ref={{cn|date=July 2016}}|fix=
 
# Go to {{code|{{P|hklm}}\SYSTEM\CurrentControlSet\Control\Class\{4D36E968-E325-11CE-BFC1-08002BE10318}\0000 (or 0001)\UMD\}}.
 
# Change the {{code|CatalystAI}} value to {{code|30}}.
 
# Change the {{code|CatalystAI_DEF}} value to {{code|0}}.
 
# Save the changes made and launch the game.
 
# If the fix does not work, try restarting the computer and launching the game again.
 
}}
 
{{Fixbox|description=(Windows 8+) Disable Catalyst A.I. in the registry|ref={{cn|date=July 2016}}|fix=
 
# Go to {{code|{{P|hklm}}\SYSTEM\CurrentControlSet\Control\Class\{4D36E968-E325-11CE-BFC1-08002BE10318}\0000 (or 0001)\UMD\}}.
 
# Change the {{code|CatalystAI_DEF}} value to {{code|0}}.
 
# Save the changes made and launch the game.
 
# If the fix does not work, try restarting the computer and launching the game again.
 
}}
 
<!--fix Windows 10?-->
 
  
 
===Low frame rate===
 
===Low frame rate===
{{ii}} This is caused by the engine incorrectly overpolling the USB I/O in Windows.<ref>[https://web.archive.org/web/20120322212143/http://forums.steampowered.com/forums/showthread.php?t=1279444 F.E.A.R. - FPS / Logitech fix - Steam Users' Forums] (retrieved)</ref>
+
{{ii}} This is caused by the engine incorrectly overpolling the USB I/O in Windows in some cases.<ref>[https://web.archive.org/web/20120322212143/http://forums.steampowered.com/forums/showthread.php?t=1279444 F.E.A.R. - FPS / Logitech fix - Steam Users' Forums] (retrieved)</ref>
  
{{Fixbox|description=Install a mod|ref={{cn|date=August 2017}}|fix=
+
{{Fixbox|description=Install [https://community.pcgamingwiki.com/files/file/789-directinput-fps-fix/ DirectInput FPS Fix] mod|ref={{cn|date=August 2017}}|fix=
Use [https://community.pcgamingwiki.com/files/file/789-directinput-fps-fix/ DirectInput FPS Fix].
 
}}
 
 
 
{{Fixbox|description=Disable unused HID devices|ref={{cn|date=July 2016}}|fix=
 
# Open the Start screen/Start menu, type <code>devmgmt.msc</code> and press {{key|Enter}}.
 
# Select "Human Interface Devices". Disable all "HID-compliant consumer control device", you should not need to disable ANYTHING else.
 
{{ii}} It is advised to re-enable the devices after the game has closed.
 
 
}}
 
}}
  
 
===Crash after starting or loading a game===
 
===Crash after starting or loading a game===
 
{{ii}} The game may crash on a CPU with more than 8 threads.
 
{{ii}} The game may crash on a CPU with more than 8 threads.
{{Fixbox|description=Turn off hyperthreading and all physical processing cores above 8 or turn off all but four logical cores.|fix=
+
{{Fixbox|description=Turn off CPU threads above 8 in the BIOS|fix=
Enter your computer's BIOS and turn off the hyperthreading CPU feature  and all physical processing cores above 8 or turn off all but four logical cores. The specific procedure depends on your motherboard, thus you have to consult the manual of your motherboard if you're unsure how to do this.
+
{{ii}} Strongly advised to turn these CPU threads back on after exiting the game to prevent general lower system performance afterwards.
}}
 
 
 
===Crash before the "Radical Entertainment" logo ===
 
{{ii}} After the notification about automatic savegames, and before the logos and main menu, the game crashes.
 
{{Fixbox|description=Remove the space in the game folder path.|fix=
 
Rename your game folder to {{code|Prototype2}} instead of {{code|Prototype 2}} (on Steam: steamapps/common/Prototype2). You can then launch the game through the executable prototype2.exe.
 
 
}}
 
}}
  
Line 433: Line 361:
  
 
===Glowing outlines on characters===
 
===Glowing outlines on characters===
{{Fixbox|description=Disable antialiasing|ref=<ref name=faq/>}}
+
{{Fixbox|description=Disable anti-aliasing|ref=<ref name=faq/>
 +
}}
  
===USB devices crash game===
+
===Game crashes when booting the game===
{{ii}} Some keyboards (and likely other input devices) may cause Prototype 2 to crash while attempting to load the game (brief black screen, follow by a crash-to-desktop).
+
{{ii}} Some keyboards (and likely other input devices) may cause Prototype 2 to crash while attempting to load the game, showing a brief black screen that isfollow by a crash-to-desktop.
 
{{ii}} Devices with additional USB ports for connecting peripherals may be responsible for the problem.  
 
{{ii}} Devices with additional USB ports for connecting peripherals may be responsible for the problem.  
  
{{Fixbox|description=Unplug USB devices|ref={{cn|date=July 2016}}|fix=
+
{{Fixbox|description=Disable HID-compliant consumer control devicec|ref=<ref>{{Refcheck|user=Mrtnptrs1|date=2022-09-02}}</ref>|fix=
* Unplug the device(s) before starting the game, then plug them back in.
 
}}
 
 
 
{{Fixbox|description=Disable HID-compliant device|ref={{cn|date=September 2016}}|fix=
 
 
{{--}} This may accidentally disable an input device.
 
{{--}} This may accidentally disable an input device.
 
# Open the [[Device Manager]].
 
# Open the [[Device Manager]].
# Disable one or more instances of <code>HID-compliant consumer control device</code> (not <code>HID-compliant device</code>).  
+
# Disable one or more instances of <code>HID-compliant consumer control device</code>, not <code>HID-compliant device</code>, till the game boots again.  
 
}}
 
}}
  
===Waypoints don't trigger and can't use airbridge===
+
{{Fixbox|description=Unplug USB devices till the game boots|ref={{cn|date=July 2016}}|fix=
{{ii}} Seems to be sporadically caused by crashing in the middle of a mission
+
{{ii}} When the device causing this crash is found, unplug the device(s) before starting the game, then plug them back in.
{{Fixbox|description=Force a reload of your character by evolving|ref={{cn|date=July 2016}}|fix=
 
* Evolve by consuming/finding collectibles to proceed with missions.
 
 
}}
 
}}
  
 
===Stuck at gray screen after task switching===
 
===Stuck at gray screen after task switching===
{{Fixbox|description=Press {{key|Alt|Tab}} two more times|ref={{cn|date=August 2017}}}}
+
{{Fixbox|description=Press {{key|Alt|Tab}} two more times|ref={{cn|date=August 2017}}
{{Fixbox|description=Run in a window (see [[#Windowed|Windowed]])|ref={{cn|date=August 2017}}}}
+
}}
 +
{{Fixbox|description=Run the game in [[#Windowed|Windowed mode]]|ref={{cn|date=August 2017}}
 +
}}
  
 
==Other information==
 
==Other information==

Revision as of 17:39, 2 September 2022

Prototype 2
Prototype 2 cover
Developers
Radical Entertainment
Publishers
Activision
Engines
Titanium
Release dates
Windows July 24, 2012
Taxonomy
Monetization One-time game purchase
Series Prototype
Prototype 2 on MobyGames
Prototype 2 on Wikipedia
Prototype
Prototype 2009
Prototype 2 2012

Key points

The PC port suffers from a number of technical issues and limitations.[1][2]

General information

Steam Community Discussions
Steam Forum thread with additional fixes - maintained by Suicidal.banana.

Availability

Source DRM Notes Keys OS
Retail
Icon overlay.png
Windows
Gamesplanet logo.svg
Icon overlay.png
Windows
Humble Store
Icon overlay.png
Windows
Steam
Icon overlay.png
Windows
Amazon.com (unavailable)
Icon overlay.png
Windows
Amazon.co.uk (unavailable)
Icon overlay.png
Windows
All versions require Steam DRM.[3]

DLC and expansion packs

Preorder DLCs "Bio-Bomb Butt Kicker" (GameStop exclusive) and "Hardened Steel Vehicle Armor" (BestBuy exclusive) are only available on Xbox 360 and PlayStation 3.
Name Notes
RADNET Access Pack
  • Over 55 unique pieces of digital content accessible at launch at no extra charge.
  • 20 Events Death-defying chopper races, intense combat scenarios plus more!
  • 20 Challenges Compete with and beat your friends’ best scores!
  • 5 Exclusive ‘Behind The Scenes’ Videos
  • 5 Exclusive Sgt James Heller Mutation Abilities
  • 5 Bonus Unlock Abilities for Sgt James Heller
  • Alex Mercer Skin unlock – the ultimate fan reward
Windows
Colossal Mayhem Pack
  • Thermobaric Boomstick: All the force of a Thermobaric Ordinance in a compact rocket launcher form. Will need to be reloaded from Radnet Menu if dropped.
  • Heller Test Subject Skin: Playable skin of Heller after his infection while being experimented on.
  • Infected Heller Skin: Playable skin that gives Heller a zombified appearance and changes all of his dialogue to growls.
  • Infantry Heller Skin: Playable Skin from before Heller was infected with Blacklight.
  • Warp Vortex: Throw or kick an object and it causes a vortex of energy to pick up all light objects and enemies nearby. Will also work with the Bio-Bomb grenade.
  • Anti Gravity Field: Anything Heller comes into contact with instantly loses its gravitational hold to the earth, including people.
  • Air Time: Infinite gliding, never touch the ground again.
Windows
Excessive Force Pack
  • New Weapon: Viral Infector Grenade Launcher
  • Armored Heller Skin
  • Agile Armor Alex Mercer Skin
  • Zombie Mercer Skin
  • Shockwave
  • Chaos Creator Mode
  • Medusa's Wrath
Windows
Colossal Mayhem Pack and Excessive Force Pack never released on Steam, however the files were hidden within the PC release files.
Download community fix
  1. Download the file unlocker here.
  2. Extract the files to <path-to-game>.
  3. Start the game.

Game data

Configuration file(s) location

System Location
Windows %USERPROFILE%\Documents\Activision\Prototype 2\
Steam Play (Linux) <SteamLibrary-folder>/steamapps/compatdata/115320/pfx/[Note 1]

Save game data location

System Location
Windows %USERPROFILE%\Documents\Activision\Prototype 2\
Steam Play (Linux) <SteamLibrary-folder>/steamapps/compatdata/115320/pfx/[Note 1]

Save game cloud syncing

System Native Notes
OneDrive
Requires enabling backup of the Documents folder in OneDrive on all computers.
Steam Cloud

Video

Graphics feature State WSGF Notes
Widescreen resolution
See Widescreen resolution.
Multi-monitor
See Widescreen resolution.
Ultra-widescreen
See Widescreen resolution. Fix for FOV with UW
4K Ultra HD
See Widescreen resolution.
Field of view (FOV)
See the WSGF entry.
Windowed
See Windowed.
Borderless fullscreen windowed
See Windowed.
Anisotropic filtering (AF)
Anti-aliasing (AA)
Can be toggle between Off, Low and High.
Vertical sync (Vsync)
60 FPS
120+ FPS
Set refresh rate manually; see Widescreen resolution. Frame rate is capped at 500 FPS; However, all games using the Titanium engine are internally locked at 60 FPS and will duplicate previous frames to achieve higher frame rates. Only the mouse cursor updates above that. Mouse controls won't work properly above 60 FPS.
High dynamic range display (HDR)
See the glossary page for potential alternatives.
An in-depth look at the Prototype 2 settings is available on this GameSpy Port Authority article.

Widescreen resolution

Resolution is natively capped at 1920x1080 and 1920x1200.
Change resolution launch option[4]
  1. Right-click the game in the Steam Library.
  2. Choose Properties, then Set launch options.
  3. Add resolution=2560x1600@60 (resolution followed by refresh rate).
  4. Choose OK to save your changes.

Windowed

Force windowed mode[citation needed]
Windowed launch option[4]

Use the -windowed command line argument.

Notes

Mouse cursor is always visible and not captured to window.

Input

Mouse acceleration

Mouse acceleration is tied to frame rate of the game, leading to extremely choppy control in periods of poor performance.[1]
Use controller[citation needed]
Usage of a controller is unaffected by the mouse acceleration problem.
Limit frame rate to keep mouse acceleration constant[5]

Audio

Audio feature State Notes
Separate volume controls
Surround sound
At least 5.1
Subtitles
Closed captions
Mute on focus lost

Localizations

Language UI Audio Sub Notes
English
French
German
Italian
Russian
Spanish

Issues unresolved

No shadows with AMD/ATI graphics cards

Prototype 2 has a similar bug as with Prototype, where shadows are not rendered properly on AMD/ATI Radeon cards.[6]
While there is a fix for Prototype, there are no known fixes for Prototype 2.
Unknown if this bug has been solved over the years through graphics driver updates.

Cannot complete Operation Flytrap

On some PC configurations it's impossible to complete the mission Operation Flytrap.
Force game to use only one CPU core[citation needed]
Advised to enable all cores for the game again after finishing this level for improved performance.
  1. Alt+tab out of the game
  2. Open task manager,
  3. Find prototype2.exe
  4. Right click -> Set Affinity... and uncheck all but one of the checkboxes.
  5. Go back into the game and restart the mission.

{{Fixbox|description=[[Glossary:Frame rate (FPS)#Frame rate capping|Cap framerate to 60 or lower before starting the mission|fix }}

Performance degrades over time

Prototype 2 has possible memory leak issues that cause performance degradation after extended time of playing the game.[citation needed]
Workaround: Alt+tab to release memory[7]
Appears to release 500-600mb of RAM, delaying the onset of a memory leak crash temporarily.

Issues fixed

Low frame rate

This is caused by the engine incorrectly overpolling the USB I/O in Windows in some cases.[8]
Install DirectInput FPS Fix mod[citation needed]

Crash after starting or loading a game

The game may crash on a CPU with more than 8 threads.
Turn off CPU threads above 8 in the BIOS
Strongly advised to turn these CPU threads back on after exiting the game to prevent general lower system performance afterwards.

No voice audio during gameplay

Bug caused by Dolby surround setups.[4]
Set sound option to TV[citation needed]
  1. Go to Options -> Audio.
  2. Set the sound system option to TV instead of Home Theater.

Glowing outlines on characters

Disable anti-aliasing[4]

Game crashes when booting the game

Some keyboards (and likely other input devices) may cause Prototype 2 to crash while attempting to load the game, showing a brief black screen that isfollow by a crash-to-desktop.
Devices with additional USB ports for connecting peripherals may be responsible for the problem.
Disable HID-compliant consumer control devicec[9]
This may accidentally disable an input device.
  1. Open the Device Manager.
  2. Disable one or more instances of HID-compliant consumer control device, not HID-compliant device, till the game boots again.
Unplug USB devices till the game boots[citation needed]
When the device causing this crash is found, unplug the device(s) before starting the game, then plug them back in.

Stuck at gray screen after task switching

Press Alt+Tab two more times[citation needed]
Run the game in Windowed mode[citation needed]

Other information

API

Technical specs Supported Notes
Direct3D 9
Executable 32-bit 64-bit Notes
Windows

Middleware

Middleware Notes
Cutscenes Bink Video v1.9.99.0

System requirements

Windows
Minimum Recommended
Operating system (OS) XP, Vista, 7
Processor (CPU) Intel Core 2 Duo 2.6 GHz
AMD Phenom X3 8750
System memory (RAM) 2 GB
Hard disk drive (HDD) 10 GB
Video card (GPU) Nvidia GeForce 8800 GT
ATI Radeon HD 4850
512 MB of VRAM


Notes

  1. 1.0 1.1 Notes regarding Steam Play (Linux) data:

References