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About game
🦦 The otter pups have scattered across the pond and hidden from Mother Otter again. Help her find every single one!
Otter Spotter is a cozy logic puzzle built on the sudoku mechanic. There is no randomness here: every level is solved by pure reasoning, never by guessing. The rules take a minute to learn, and the boards keep getting trickier.
🏆 Tournaments — compete with other players and climb the leaderboard
🔥 Streak bonus — play 7 days in a row and claim your rewards
✨ A special reward for clearing levels without a single loss
🎨 Adorable otters, soft colors and an unhurried mood
⏱️ A level takes a couple of minutes — perfect for a short break
🆓 Free to play right in your browser, no download needed
How to play
🎯 Goal: find all the otter pups hiding on the board.
📏 Rules:
🦦 The number of hidden otters equals the width of the board: a 6×6 board hides 6 otters
➡️ Exactly one otter in each row
⬇️ Exactly one otter in each column
🎨 Exactly one otter in each colored area
🚫 Otters never sit next to each other — not side by side, not diagonally
👆 Controls: tap a tile once to mark it as empty, twice to place an otter, three times to clear it.
💡 Tips:
• Start with the smallest colored areas — fewer options to check
• Once you place an otter, immediately mark its row, column and neighboring tiles
• If a row or column has only one free tile left, the otter is there
• Never guess: each level has one solution, and logic alone will always get you there