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Reclaim the Lewis family heirloom, in this short 2-D Collectathon Platformer. Navigate treacherous lands and infiltrate Calculus Castle, finding various secrets along the way.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Social Deduction Fest ends
Find and collect over 1000 gems on your journey toward Calculus Castle!
Explore 8 unique levels on your quest
Special unlocks and secret levels
Compete for the fastest level completion time
Earn achievements that unlock new skins for Lewis
Challenge yourself with Hard Mode - with super tough precision platforming
Try and collect every gem in each level!
