Announcement
Tiny pause menu change
Changed the quit button while playing the game be a quit to menu button where you can switch to other game types or completely quit the game from there.
Steam
Up Against Aliens
Also known as Up Against Aliens, steam:2550660, uaa
Navigate cosmic debris using time-bending tech in this 3D platformer. Solve puzzles and thwart the alien threat across shifting landscapes. Will you be Earth's unexpected savior when you go Up Against Aliens?
Last update
18 May 2026
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0
Original sources
1
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Browse past updates and patch notes for this game.
Gallery
In-game media
Achievements
Community progression
Top picks from 7 Steam achievements, sorted by player unlock rates.
- You've hit rock bottomFall all the way to the bottom of the level.100.0%
- What's your pin number?Successfully solved the pin pad puzzle.100.0%
- Let the adventure beginBeginning the adventure ahead.100.0%
- Is that a time machine in your pocket?Acquired the time manipulation device.92.4%
- Like Totally Tubular DudeSuccessfully completed the pipe puzzle.91.3%
- Mission Complete Aliens DefeatedYou've done, you defeated the aliens and saved... well you defeated the aliens!91.0%