Gems on a Shelf
Stack glittering gems into neat rows on a shelf without overfilling.
Swipe to slide incoming gems left or right, slotting them into the right colored row before the shelf overflows.
Swipe horizontally to slide the gem lane; tap to drop.
Direct hypercasual simplification of Jewel Coloring's jewel-shelf loop.
Reviews call Jewel Coloring 'the best way to relax or take a quick break' — a swipeable single-screen version fits that promise.
Jewel Coloring confirms the jewel/color theme hooks — #12 top free US with 4.9★ across 22K App Store ratings — but the swipe-shelf concept is a direct re-skin of a proven category, not a fresh hook.Jewel Coloring tops jewel-coloring category with 4.9★ across 22K App Store ratings ↗Jewel Coloring by Ta Ta Game Technology — the trend reference game ↗
Sort puzzles are 'UA-friendly: readable boards, visual transformation' and color-matching produces shareable moments, but shelf-sort lacks the ASMR/physics novelty that drives breakout TikTok virality.TikTok trend note calling color-matching and stacking shareable but standard ↗Turbine notes SORT puzzles have 'readable boards, visual transformation' — UA-friendly but not inherently viral ↗
Single-swipe core, procedural levels, no asset-heavy content — explicitly cited as 'low production cost' in the sort-puzzle genre, easy prototype.Sort puzzles described as 'low production cost: procedural levels' ↗Off-the-shelf Unity hypercasual puzzle engines already cover color-stacking ↗
Sort is the highest-IAP hybridcasual mechanic — Rollic has 8 of top 28 IAP titles, with proven loss-aversion stacks, rewarded ads for extra lives, and streak/event systems ported from Royal Match.Color/screw/goods/coin sorting lead IAP in hybridcasual 2025 ↗Sort mechanics drive strongest loss-aversion monetization in hybridcasual ↗
Extremely saturated — 'Goods/SHELVES SORT' alone has 35+ titles >1M downloads, plus Dock Sort Puzzle (Bus Jam, Block Jam 3D), Hexa Sort, Water Sort and ~50k new games/year — gem-shelf is essentially a sub-niche of an already crowded shelf.Turbine timeline: 35+ shelf/goods-sort titles >1M downloads, Bus Jam defined DSP format, Hexa Sort, Block Jam 3D all live ↗April 2026 rankings show Jewel Coloring surged 33 spots iOS — category is actively contested ↗