Slam
Control gravity and negotiate your way through a series of increasingly difficult puzzles!

Positive · 32 reviews
97% positive (31 / 32)






A game about palindromes (and otters). Compete for high scores and discover new gameplay twists as you explore the surprising depths of this fresh new puzzle mechanic.
Released
January 28, 2022
Price
Platforms
macOS · Windows
Developer
Publisher
Last sync
September 24, 2026
Otteretto is a puzzle game about palindromes (and otters).
This isn't another Match-3 game; it's a whole new idea to wrap your head around! How long of a palindrome can you make?
Classic: Try to reach each level's score goal in the addictive original mode.
The Daily Stack: Join a global competition every day! How many points can you get from the same set of squares as everyone else?
Puzzle: Use logical reasoning to figure out how to turn a set of squares into a single, massive palindrome!
Containment: With more squares being added every move, how long can you keep the container from overflowing?
Walls: In this challenging variant, you'll need to get creative to work around each level's impassable walls.
See how you stack up with online, cross-platform leaderboards.