Thermonuclear Smoke Devil
How to use this page
- If you’re new, use the Full guide tab.
- If you know how this monster works, use the Quick setup tab.
- In the Full guide, watch the red chapters first, then select a location.
- Press 1 or 2 to switch tabs.
Date uploaded: Jun 4, 2026Methods covered: Melee Walk-Under Method and Magic...more
This guide covers how to kill Thermonuclear Smoke Devil in Old School RuneScape (OSRS): the best gear setups, prayers, inventory and methods. This OSRS boss guide works for ironman and regular accounts, and covers whether a cannon or safespot can be used. It doubles as a money making guide, and will help both low and high level players get their kills.