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OSRS Inferno Simulator

Browser-based Inferno trainer. Practice any wave, lock spawns, swap loadouts, replay Zuk and Jad without entering the cave.

Calendar
May 25, 2026

The Inferno Simulator runs in a browser. 66 waves, Zuk, Jad. No client, no login.

https://inferno-simulator.detuks.com/

What it simulates

  • Waves 1–66 with the real spawn logic
  • Wave 67: TzKal-Zuk with shield, set timer, configurable shield direction (West, East, Random)
  • Waves 68–69: Jad and healers
  • All JalTok mob types: Nibblers, Bats, Blobs, Meleers, Rangers, Magers
  • Pillar geometry (South, West, North) matching in-game

Practice modes

  • Jump to any wave 1–69
  • Lock spawns and replay the same encounter
  • Auto-progress through waves on clear
  • Custom wave builder, shareable via URL
  • Spawn arbitrary mobs anywhere on the arena

Loadouts

Eight presets covering most builds: Max Melee, Max Tbow, Max Tbow (speedrunner), Max Fbow, Budget Fbow, RCB, Berserker, Pure. Auto-swap on Zuk and Jad. Slayer task toggle handles the helm swap.

Inventory-level breakdowns for these builds live in Detuks Inferno Plugin Loadouts.

RuneLite sync

Install the Inferno Stats plugin from the RuneLite Plugin Hub. After a death in-game, click the wave in the plugin panel and the simulator loads with the exact spawn from that attempt. Disable "Hide when outside of the Inferno" so the panel stays visible after you plank.

Runs in the browser

WebGL, no install, settings persist in localStorage, works on phones.

If you would rather not learn it

The simulator teaches the fight. The Detuks Inferno Plugin does the fight. It runs the cape end-to-end or assists in semi-auto. Pick whichever matches the time you want to spend.

For a computer-solved auto-retaliate strategy that sits between the two — you still play the wave, but the solver picks the start tile and prayer sequence — see Autozuk — Computer-Solved Inferno Wave Solver.

Other simulators

Colosseum and Sol Heredit: https://colosseum-simulator.detuks.com/

Credits

  • Jagex — all Old School RuneScape assets
  • Tesla Owner — original Inferno Trainer and engine work
  • Supalosa — engine and content contributions
  • Xavier Bergeron, JoshuaDunbrack, Simon Synnes, Ryan Copley, johnvictorfs, coopermor, cboar, Łukasz Woźniak, Derek Lopes, Dan Garcia — engine and content contributions

Built on the open-source OldSchoolSDK engine.

Source

https://github.com/detuks-client/InfernoColoSimulator — master branch holds the Inferno simulator; colosseum branch holds the Sol Heredit simulator.

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