
JJBoom is a pixel platformer for 2–4 players (local/online). Use gamepad or keyboard! 16+ free levels with spikes, traps—and your kids—to keep you on your toes!

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JJBoom is a pixel-art platformer game.
Gather your friends, bring your kids, and dive into thrilling battles right in your living room. With incredible anticipation and razor-sharp reflexes, you’ll never lose!
· 2–4 player local and online multiplayer
· Supports both gamepad and keyboard controls
· 16 standard levels combined with cleverly designed core mechanics create unique tactical strategies and ever-changing fun—all new levels are completely free!
Watch out for floor spikes—and your own kids—they’re the ones who’ll make you lose!

92% positive reviews all-time · 0 peak players in the last 30 days.
JJBoom peaked at 0 concurrent players on Steam in the last 30 days (highest on Jul 7, 2026). The player chart on this page updates daily.
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