🌈 Welcome to Color Stack!
Sort the colorful blocks and complete each stack before your opponent! 🧱🎨
🧠 Plan your moves carefully
⚡ Race against other players
🧩 Take on tricky color puzzles
🏆 Become the fastest stacker
❤️ Colorblind-friendly options available
Easy to learn. Hard to master.
👍 Like + Favorite the game for updates and rewards!
CCU is sampled every ~30 min and keeps updating until a game spends a full month below 100 concurrent players — after that it’s considered dormant and collection stops.
rank history · 4d
lower is better
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▸ 1 youtube video in window · hover to locate · click to open ↑tap a card to open ↑
Cumulative up/down votes and the resulting approval rate, sampled every ~30 min whether or not the game is currently charting. A gap marks a stretch where no vote reading was recorded.
update history
5 since aug 23 2026 · every ~19h · 5 in 30d
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Each stem is one shipped update, as tall as the gap it closed — how long the previous build stayed current. The scale is logarithmic so one quiet month doesn’t flatten a year of daily shipping. Behind the stems is the same 4d player curve, so a build can be read against what it shipped into.