Combat mechanic — not covered elsewhere

Combat Level and Spawn Scaling

A player who mined for an hour came back to a harder world, holding the same sword, having gained nothing that helps them fight

Every creature that spawns is leveled around the player somehow — and for a long stretch of the game's history, that scaling read from exactly the wrong number. The game's own development notes call this "a bug wearing a balance costume": every creature's level scaled off Total Level, the sum of all nine skills including mining, woodcutting, and edging — none of which help a player fight. Chopping wood for an hour made every monster in the world tougher, while leaving the player exactly as capable of fighting them as before.

Combat Level: five skills, not nine

Enemy spawn difficulty now reads from a dedicated Combat Level instead — the average of exactly five skills: Attack, Defence, HP, Ranged, and Magic. Mining, Woodcutting, Edging, and Summoner are deliberately excluded, on the direct reasoning that none of them makes a character better in a fight. A newly-spawned creature's own level is set to roughly 60-110% of the player's Combat Level, randomised within that range each time.

This change is narrowly scoped to spawning alone. Total Level — the full sum of all nine skills — is still exactly the right number everywhere else it's used: quest gates, world-travel unlocks, the Milestone Road, and dozens of other places throughout the game all correctly measure a character's overall progress rather than just their fighting ability, and none of those were touched.

History

• Spawn scaling moved from Total Level to Combat Level, closing a genuine imbalance where gathering skills had been quietly raising the difficulty of every fight in the game with no corresponding benefit to the player fighting them.
• Shipped the same day as the Experience Rate doubling — two separate balance changes landing together rather than one covering the other.

Trivia

• If a character's skill data can't be read for any reason, Combat Level falls back to the old Total Level number rather than to zero or one — a difficulty calculation that could silently read as "level 1" would make the entire world trivially easy, which the design notes call a worse failure than the bug this was built to fix in the first place.