All Mechanics
Valheim systems explained — console commands and which ones lock achievements, world modifiers, the cheat-flag system, and 1.0 mechanics like the Jotun invasion.
Valheim 1.0 Achievements Guide: How Many There Are & What Locks Them
How Valheim 1.0's 53 achievements work, which console commands and world modifiers permanently flag your world as cheated, and how to check your status in game.
Last updated: 9/19/2026
Valheim Console Commands in 1.0: How to Enable Them & What Locks Achievements
How to enable the Valheim console in 1.0, the devcommands you need, and which commands permanently flag your world as cheated and lock achievements.
Last updated: 9/19/2026