Royal Stack icon

Royal Stack

Unicorn Lab
⬇ 1,000+ downloads
Est. actual: 1,362
Style: Sort / Water Sort
Free
Released: Aug 13, 2026
No in-app purchases
No ads
Rated: Everyone

Signals

1 this week · 1 positive All of this week's signals →
  • 🛠Updates actively updated · updated 8 days ago
Installs since launch
0 681 1.4K 1.4K Aug 13, 2026 today
Tracking since Sep 25 — growth appears once we have a second daily reading.
Update history
0.0.8 Sep 18, 2026 · seen Sep 25, 2026
Gameplay Improve and Bugs Fixes
Only the current version so far — new entries appear as the game ships updates.
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Welcome to Royal Stack, an addictive and satisfying color sorting puzzle where every move requires strategy and planning. Challenge your brain by organizing colorful card stacks, solving increasingly difficult puzzles, and mastering hundreds of unique levels. Each level contains a grid of card stacks filled with different colors placed in a completely random order. Below the puzzle is a special Rainbow Card Holder that always contains a rainbow card, giving you a unique way to manipulate every stack. Tap any column in the puzzle to use the Rainbow Card. The rainbow card is placed on the top of the selected stack, pushing every existing card in that stack one position downward. As the cards shift down, the bottom card leaves the stack and moves into the Rainbow Card Holder. 🎮 How to Play “Royal Stack” 🌈 Tap any stack. ⬇️ The Rainbow Holder places its card on top. 🔄 Every card shifts down. 🎴 The bottom card returns to the Rainbow Holder. 🎯 Arrange every stack so all cards match the same color. Why Players Love Rainbow Stack Sort 🧠 Easy controls with deep strategic gameplay 🌈 Unique Rainbow Holder rotation mechanic ✨ Relaxing visuals and satisfying animations 🧩 Fresh obstacles that keep every level exciting 📈 Increasing challenge that rewards smart planning 🎮 Quick levels perfect for short breaks 📶 Play offline anytime, anywhere If you enjoy satisfying puzzle games that are easy to play but difficult to master, Rainbow Stack Sort is your next favourite challenge.