A downloadable game for Windows, macOS, and Linux

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By the five moons of Gartha, it's true! Strange Adventures in Infinite Space is back!

Strange Adventures in Infinite Space (SAIS) was the first space roguelike (or hybrid "roguelite"). It was released in 2002 by James Ernest and Cheapass Games. SAIS was created by Rich Carlson, Iikka Keränen and Bill Sears--aka, Digital Eel.

SAIS generates a different interstellar region every time the game is played. Stars, planets, black holes, nebula mass, alien patrols, items, lifeforms and other encounters are randomized for each new Strange Adventure.

  Playing time: 5-20 minutes
  Number of players: solo
  Difficulty: variable
  Replayability: infinite

SAIS features:

  + 21 different ship types
  + 69 different weapons, drives, shields, gadgets and artifacts
  + 18 alien lifeforms
  + 17 different planet and star types
  + 7 unique alien races

Note to new players: SAIS is not a 4X strategy game, nor is it an arcade-style shoot 'em up. It's more like an animated adventure boardgame with starship combat more like Star Trek than Star Wars.

Many thanks to Chris Collins for creating the new SAIS builds. In fact, let's all give him a big hand right now, okay? (This is labor-of-love stuff, folks.)

Strange Adventures is free, DRM-free and ready to be shared, so everyone can play it. Don't let its "small size" fool you. SAIS is a subtle and challenging roguelike that game guru Ernest Adams called "A perfect short game".

Note: this special release includes most if not all of the mods created by the SAIS community for the game. Check out The Urluquai Crusade and Even Stranger Adventures in Infinite Space, and more.

Also note: this version runs (mostly) uniformly on Windows, macOS and Linux from the same codebase (ziptar.gz).

The original Strange Adventures in Infinite Space webpage is still available here, though much of its content is dated and many of its links are now irrelevant or defunct. The original versions of SAIS can be found here, and the original SAIS source code, here.  Also see the SAIS Galactic Guidebook for gameplay help and other nifty details.

Lastly, two sequels were created by Digital Eel based on Strange Adventures--Weird Worlds: Return to Infinite Space (2005) and Infinite Space III: Sea of Stars (2015). Both games improved aesthetic aspects of the series and built on what came before, but the essential gameplay remained unchanged.

Get Weird Worlds from Steam or itch.
Get Sea of Stars from Steam or itch.

Visit Digital Eel
Visit Digital Eel on Facebook
Visit Strange Adventures on Facebook
Visit Weird Worlds on Facebook
Visit Sea of Stars on Facebook


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Click download now to get access to the following files:

SAIS-GPL-1.6.3-Linux-x86_64.tar.gz 8 MB
SAIS-GPL-1.6.3-macOS-x86_64.dmg 9 MB
SAIS-GPL-1.6.3-macOS-x86_64.zip 9 MB
SAIS-GPL-1.6.3-Windows-AMD64.msi 9 MB
SAIS-GPL-1.6.3-Windows-AMD64.zip 8 MB
Strange_Adventures_mod_pack.zip 5 MB