A roguelike that respects your time — and your skill
Every run is 3:00–12:30 of top-down survivors-like combat. You control movement while your weapons auto-fire at the nearest threats — vacuum up XP and gold, choose your level-up picks, and assemble a build that can survive the end-of-sector boss. Bank your loot, upgrade in the Hub, and dive back in stronger.
Built on React, HTML5 Canvas and the Omen Foundation backbone — fully playable on desktop and mobile, no install required.
Fight · Loot · Upgrade · Ascend
Approachable in sixty seconds, deep enough to chase for an entire season.
Pick up in seconds
Hit Play and you're dodging swarms within five seconds — no install, no wallet popup at the front door.
10 distinct pilots
Commanders, snipers, hackers and tanks, each with a unique signature ability and mastery path.
23 weapons, real builds
9 weapons, 7 synergies and 7 evolutions. Pair the right weapon and passive to clear the screen.
20 sectors + Endless
Fight across the Inner and Outer Galaxy, then chase infinity in Endless, Leviathan Trials and Raids.
Squads & wars
Form a 5-pilot squad, pool a treasury, win weekly Squad Wars and coordinate Meteor DPS checks.
Skill-based ladders
Weekly and seasonal leaderboards with server-validated scoring — the climb rewards skill.
Choose Your Pilot
Ten sloths, ten playstyles — from the balanced NeoByte to the glass-cannon NeonVortex.
Balanced all-rounder.
Tanky but slow.
High area and damage, low HP.
Very fast, high damage, fragile.
High magnet range and XP gain.
Fast cooldowns, high luck.
Many Ways to Play
Sector Run
Pick a pilot, arena and difficulty, then clear a timed sector ending in a boss. 20 sectors across the Inner and Outer Galaxy; durations run 3:00 up to 12:30.
Endless
Launched from its own button — no timer, no win condition. Gold trickles in (capped at 12/sec) and kills bank at up to 5/sec while difficulty ramps forever. Its own leaderboard.
Leviathan Trials
Toggle on boss modifiers (the 'Cosmic Mutations' menu) to make bosses deadlier in exchange for bigger gold, XP and relic-fragment drops. Stack as many as you dare.
Galactic Raid
A server-wide co-op world boss. Every player chips at one shared HP pool and earns rewards scaled to their damage contribution.
Squad Meteor
A 90-second DPS-check arena for squads. Members pick a meteor target and hammer it together; cumulative damage funds squad-wide weekly buffs.
Squad Wars
Weekly head-to-head between two squads. Most kills over the week wins, building your squad's lifetime war record and streak.
Back the studio behind the game
Cosmic Sloths is built by a small independent studio. If you'd like to support development directly — completely separate from the in-game economy — a crypto tip helps cover servers and fund new sectors, pilots and faster updates. Every bit is hugely appreciated.
The cosmos won't clear itself
Jump into a run now, or study the guides and plan the perfect build first.