Planet X3

General information

Availability

Source	DRM	Notes	Keys	OS
Retail		Available on the developer's website (360 KB and 720 KB floppy only). Includes digital download.
Developer website
Steam		Can be played without Steam. Pre-packaged with DOSBox.

System	Location
DOS
Steam Play (Linux)	<Steam-folder>/steamapps/compatdata/2479230/pfx/^{[Note 1]}

System	Location
DOS	SAVEGAME.DAT
Steam Play (Linux)	<Steam-folder>/steamapps/compatdata/2479230/pfx/^{[Note 1]}

Graphics feature	State	Notes
Widescreen resolution		CGA, VGA, and Plantronics Colorplus 320x200. CGA Composite and Tandy 160x200 CGA monochrome, Tandy Hi-Res, and EGA 640x200. Hercules 720x350 See the DOSBox page for more information. Note that DOSBox does not support Plantrontics Colorplus mode, and may not support aspect ratio correction in certain modes.
Multi-monitor
Ultra-widescreen
4K Ultra HD
Field of view (FOV)
Windowed		For DOSBox toggle with `Alt`+`↵ Enter` (see the glossary page for other workarounds).
Borderless fullscreen windowed		See the glossary page for potential workarounds.
Anisotropic filtering (AF)
Anti-aliasing (AA)
Vertical sync (Vsync)		For DOSBox use an unofficial build (see the glossary page for other workarounds).
60 FPS
120+ FPS
High dynamic range display (HDR)
Color blind mode		CGA color palate can be swapped.

Controller types

Audio feature	State	Notes
Separate volume controls		Sound effects and music on/off only.
Surround sound
Subtitles
Closed captions
Mute on focus lost		For DOSBox change the `priority` background value in the DOSBox configuration file.

In-game music was composed specifically for the Tandy 3-Voice, and then converted for use with PC speaker and Ad Lib.^[2]

Language	UI	Audio	Sub	Notes
English

Technical specs	Supported	Notes
DOS video modes	CGA, CGA Composite, EGA, Hercules, Tandy, VGA	^[1]^[3] Plantronics Colorplus also available.

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

DOS
	Minimum	Recommended
Operating system (OS)
Processor (CPU)	Intel 8088 4.77 MHz (for CGA/Tandy version) Intel 8088 10 MHz (for VGA version)	Intel 8088 8 MHz (for CGA/Tandy version) Intel 286 10 MHz (for VGA version)
System memory (RAM)	256 KB
Hard disk drive (HDD)		720 KB (for installation)
Video card (GPU)	CGA	Tandy, VGA
Sound (audio device)	PC Speaker	Tandy 3-voice, Ad Lib or 100% compatible
Other	3.5 or 5.25 inch Floppy Disk Drive (physical release)

Compatibility for Covox Speech Thing and clones can be achieved using the TEMU.COM wrapper.

May support macOS 10.14 or earlier.^[4]

↑ ^1.0 ^1.1 File/folder structure within this directory reflects the path(s) listed for Windows and/or Steam game data (use Wine regedit to access Windows registry paths). Games with Steam Cloud support may store data in ~/.steam/steam/userdata/<user-id>/2479230/ in addition to or instead of this directory. The app ID (2479230) may differ in some cases. Treat backslashes as forward slashes. See the glossary page for details.