A combat ring can be built in the combat ring space of the combat room in a player-owned house. It requires 51 Construction to build and when built, it gives 630 experience. The player must have a hammer and a saw in their inventory to build it.
In a combat ring, per its examine info, anything goes. All weapons, armour, jewellery, and spells (with the exception of teleportation spells) are allowed. It should be noted that the spikes surrounding the combat ring are for decoration and do not inflict any damage should someone run into them.
- Combat rings were previously used for power levelling combat stats, as they are very easy to access. Players could use attacks that hit multiple targets to rapidly gain xp. Players respawned outside the ring, so they could re-enter the ring immediately, allowing for very fast training of combat stats. This method was patched out of the game and the training method is no longer possible.
- In the Duel Arena, all stats are restored to normal before the duel starts; fighting in the combat ring can be more economical due to the fact that potions can be used for more than one fight, allowing larger amounts of damage for longer amounts of time, since the stats are not reset.