Ocellus Simulator: The Fractured Archive (OSRS Raid 4)

A free practice simulator for Ocellus, the final boss of The Fractured Archive, Old School RuneScape's fourth raid. Fight all four phases in your browser with the game's own models, animations and sounds, and attacks timed tick by tick from recorded kills.

• Start at any phase: Corners, The Blade, Quadrants or the last quadrant
• Practice mode (you can't die, prayer stays up) and danger-tile highlights
• Ranged or melee setups, replayable seeds, no download and no account

Built on Julian-Dasilva's phase 4 trainer (archive-ocellus-trainer.raid-sims.workers.dev). Open source on GitHub. Made by @alrodi.