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Game controls
Move/Jump
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Fullscreen (page)
Game details
What is Alter about?
After two planets collide, a young hero discovers the power to change the size of everything around him. In Alter, manipulate the environment, think creatively, and solve inventive puzzles as you journey through a world transformed by cosmic forces.
Can we play Alter on mobile?
No, Alter is designed for desktop play and works best on computers using a keyboard or mouse.
Is Alter free to play?
Yes, Alter is free to play on Y8 and runs directly in your browser.