The Mysterious Island

This page is for the sandbox survival game. For the unrelated adventure game, see Return to Mysterious Island.

Key points

This game was re-released as freeware in 2015.

Availability

Source	DRM	Notes	Keys	OS
Retail
itch.io		Authentication servers down since at least 23 July 2022.^[2]^[3]

System	Location
Windows

System	Location
Windows	<path-to-game>\Mysterious Island\Data\*.sav^{[Note 1]}

No save game cloud syncing information; you can edit this page to add it.

In-game general options.

In-game advanced graphics options.

Graphics feature	State	Notes
Widescreen resolution		1920x1080 only. Mistakenly listed as duplicate entry for 1280x960x32.
Multi-monitor
Ultra-widescreen
4K Ultra HD
Field of view (FOV)
Windowed		See the glossary page for potential workarounds.
Borderless fullscreen windowed		See the glossary page for potential workarounds.
Anisotropic filtering (AF)		See the glossary page for potential workarounds.
Anti-aliasing (AA)		The in-game setting cannot be toggled.
Vertical sync (Vsync)		See the glossary page for potential workarounds.
60 FPS
120+ FPS
High dynamic range display (HDR)		See the glossary page for potential alternatives.

Advanced graphics options can be accessed with <path-to-game>\Mysterious Island\TheMysteriousIsland.exe setup or using a Start Menu shortcut.

Controller types

In-game sound options.

Audio feature	State	Notes
Separate volume controls		Sliders for Speech and Ambient Sounds. Music and Sound Effects can only be toggled.
Surround sound		4.0
Subtitles
Closed captions
Mute on focus lost
Royalty free audio

Language	UI	Audio	Sub	Notes
English
Polish				Original release. Released as Tajemnicza Wyspa.
Russian				Released as Таинственный остров.

Tranparent textures glitch.

Start the game using the launcher
Access advanced graphics options with <path-to-game>`\Mysterious Island\TheMysteriousIsland.exe setup` or with a Start Menu shortcut (TheMysteriousIsland Setup.exe). Select Very big textures from the Texture size drop-down menu. Start the game by clicking OK.

This setting is not saved by the game. The fix only works for the current playthrough.

Technical specs	Supported	Notes
Direct3D	8, 9

Executable	32-bit	64-bit	Notes
Windows

No middleware information; you can edit this page to add it.

↑ 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).

↑ The Mysterious Island - itch.io store - last accessed on May 2023
↑ The Mysterious Island - Servers down? - last accessed on 2023-06-15
↑ Verified by User:Macgovern on 2023-06-15
When attempting to run any provided version of the game, the main menu states authentication servers cannot be found, even with a confirmed Internet connection, and the game refuses to go past the main menu.