Delver

Key points

Source code released on November 15, 2018,^[2] originally under the GPL-2.0 license. Changed to the more permissive zlib/libpng license on September 21, 2020.^[3]

General information

Unofficial wiki

Steam Community Discussions

Delver Engine on GitHub

Availability

Source	DRM	Notes	Keys	OS
Developer website		Purchase via Humble Widget. Includes Android version.
Humble Store
itch.io
Steam

Essential improvements

Skip intro videos

Use Delver-Unlimited^[4]

Mods

There is a "Mods" section on the developer's website which features a few high-quality modifications.

The developer has also posted a simple Modding Guide to the Steam Community Discussions board for Delver.

Game data

Configuration file(s) location

System	Location
Windows	<path-to-game>\save\^{[Note 1]}
macOS (OS X)	<path-to-game>\save\
Linux	<path-to-game>\save\

It's unknown whether this game follows the XDG Base Directory Specification on Linux. Please fill in this information.

Save game data location

System	Location
Windows	<path-to-game>\save\^{[Note 1]}
macOS (OS X)	<path-to-game>\save\
Linux	<path-to-game>\save\

Saves are in folders 0, 1, 2.

Save game cloud syncing

System	Native	Notes
Steam Cloud

Video

General settings.

Graphics feature	WSGF	Notes
Widescreen resolution		Custom resolution can be forced using Delver-Unlimited
Multi-monitor
Ultra-widescreen
4K Ultra HD
Field of view (FOV)	50-110° vert
Windowed
Borderless fullscreen windowed	See the glossary page for potential workarounds.
Anisotropic filtering (AF)	Some sprites are hardcoded to use AF
Anti-aliasing (AA)	See the glossary page for potential workarounds.
Vertical sync (Vsync)	Hardcoded to being enabled, windowed mode doesn't support Vsync - use Delver-Unlimited to disable it.^[4]
60 FPS and 120+ FPS	Set a frame rate limit using Delver-Unlimited
High dynamic range display (HDR)	See the glossary page for potential alternatives.

Input

General input settings.

Keyboard & Mouse settings.

Keyboard and mouse	State	Notes
Remapping		See the glossary page for potential workarounds.
Mouse acceleration
Mouse sensitivity
Mouse input in menus
Mouse Y-axis inversion
Controller
Controller support		Only works in windowed mode.
Full controller support
Controller remapping		See the glossary page for potential workarounds.
Controller sensitivity
Controller Y-axis inversion

Additional information
Button prompts
Controller hotplugging
Haptic feedback
Simultaneous controller+KB/M

Audio

Audio feature	State	Notes
Separate volume controls		Music and Sound.
Surround sound
Subtitles		Enemy speech is not subtitled.
Closed captions
Mute on focus lost
Royalty free audio

Localizations

Language	UI	Audio	Sub	Notes
English
Catalan				Fan translation, download.
French				Fan translation, download.
German				Fan translation, download.
Brazilian Portuguese				Fan translation, download.
Spanish				Fan translation, download.

Other information

API

Technical specs	Supported	Notes
OpenGL	2.0	LWJGL 2.9.2

Executable	32-bit	64-bit	Notes
Windows
macOS (OS X)
Linux

Replace Java version

The game bundles with an old version of Java which can be replaced with newer versions of Java that may improve compatibility and performance for low end hardware.

Use modified executable (Windows)^[4]

Download Delver-Launcher
Go to <path-to-game>
Delete or rename Delver.exe.
Rename Delver-Launcher vx.x.x you just downloaded to Delver.exe and put it inside <path-to-game>

Notes

Make sure the JAVA_HOME environment variable is set correctly, guide

Create a symbolic link (Windows)^[4]

Go to <path-to-game>
Delete or rename jre-windows
Open a Command Prompt as a administrator in <path-to-game>
Type mklink /d jre-windows "%JAVA_HOME%" into the command prompt

Notes

Make sure the JAVA_HOME environment variable is set correctly, guide

No longer works since Update 14

Command line arguments

Command	Description
debug=true	Enables debug mode, while ingame press `K` to open menu, etc.
drawdebugboxes=true	Draws the debug boxes

System requirements

Windows
	Minimum	Recommended
Operating system (OS)	Vista, 7, 8
Processor (CPU)	1.5 GHz	Dual Core
System memory (RAM)	1 GB
Hard disk drive (HDD)	200 MB
Video card (GPU)	OpenGL 2.0 compatible

macOS (OS X)
	Minimum
Operating system (OS)	10.5, 10.6
Processor (CPU)	2.0 GHz
System memory (RAM)	1 GB
Hard disk drive (HDD)	200 MB
Video card (GPU)	OpenGL 2.0 compatible

Linux
	Minimum
Operating system (OS)	Ubuntu
Processor (CPU)	2.0 GHz
System memory (RAM)	1 GB
Hard disk drive (HDD)	200 MB
Video card (GPU)	OpenGL 2.0 compatible

Notes

↑ ^1.0 ^1.1 When running this game without elevated privileges (Run as administrator option), write operations against a location below %PROGRAMFILES%, %PROGRAMDATA%, or %WINDIR% might be redirected to %LOCALAPPDATA%\VirtualStore on Windows Vista and later (more details).

References

↑ ^1.0 ^1.1 ^1.2 Delver 1.0 is dropping on Feb 1! - Steam Community :: Group Announcements :: Delver
↑ Delver devs release their tech publicly under open source license - last accessed on 2020-10-06
"Priority Interrupt has open sourced the tech behind its first-person action roguelike, Delver, for public use after one of the developers announced the decision on Twitter."
↑ First person dungeon-crawler 'Delver' properly open source again, pulls in lots of updates - last accessed on 2020-10-06
"Many months after the original February 2018 release, in November 2018 they opened up the source code under the GPL. They weren't sold on that choice of license though, eventually moving over to a slightly customized version of the zlib license. However, there's some great news for fans of OSI-approved licensing as they've now settled on the normal zlib license - so it's now again properly open source!"
↑ ^4.0 ^4.1 ^4.2 ^4.3 Verified by User:Hawaii_Beach on 2017-04-21
Research of my own

[gamedir-5] 1.0 ^1.1 When running this game without elevated privileges (Run as administrator option), write operations against a location below %PROGRAMFILES%, %PROGRAMDATA%, or %WINDIR% might be redirected to %LOCALAPPDATA%\VirtualStore on Windows Vista and later (more details).

[release_date-1] 1.0 ^1.1 ^1.2 Delver 1.0 is dropping on Feb 1! - Steam Community :: Group Announcements :: Delver

[2] Delver devs release their tech publicly under open source license - last accessed on 2020-10-06
"Priority Interrupt has open sourced the tech behind its first-person action roguelike, Delver, for public use after one of the developers announced the decision on Twitter."

[3] First person dungeon-crawler 'Delver' properly open source again, pulls in lots of updates - last accessed on 2020-10-06
"Many months after the original February 2018 release, in November 2018 they opened up the source code under the GPL. They weren't sold on that choice of license though, eventually moving over to a slightly customized version of the zlib license. However, there's some great news for fans of OSI-approved licensing as they've now settled on the normal zlib license - so it's now again properly open source!"

[Hawaii_ref-4] 4.0 ^4.1 ^4.2 ^4.3 Verified by User:Hawaii_Beach on 2017-04-21
Research of my own

[1]

[2]

[3]

[4]

[Note 1]

Developers

	Priority Interrupt
Engines
	Delver Engine
Release dates
Windows	February 1, 2018^[1]
macOS (OS X)	February 1, 2018^[1]
Linux	February 1, 2018^[1]