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ocellus sim

A free web demo — play it in your browser, no install. Free browser simulator for Ocellus, the final boss of The Fractured Archive (OSRS Raid 4). All four phases, built on osrs-sdk. Play at ocellus-sim.pages.dev

by @alessandrorodi · alessandrorodi/ocellus-sim on GitHubLANG TypeScriptHOSTED ON OCELLUS-SIM.PAGES.DEVUPDATED 26 Oct 2026

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Controls: Arrow keys · WASD · Mouse · Tap

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From the README

Practise the whole Ocellus fight from The Fractured Archive (OSRS Raid 4), all four phases, in your browser.

▶ Play it at ocellus-sim.pages.dev

Ocellus is drawn from the game's own models, animations, effects and sounds, extracted from the OSRS cache at build time. His attacks follow a tick-by-tick analysis of recorded kills. No download and no account: open the link and fight.

Created using intellectual property belonging to Jagex Limited under the terms of Jagex's Fan Content Policy. This content is not endorsed by or affiliated with Jagex.

spells, and the sounds each animation plays.

Read the full README on GitHub →

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