Swim Skill ID

Swim is one of Valheim's character skills, tracked under the internal ID Swim. Determines stamina drain while swimming.

Experience is gained at 0.3 per second while swimming.

At max level (100) it grants -50% stamina usage.

Adjust your level from the console with raiseskill Swim 10 to add 10 points, or resetskill Swim to wipe it back to 0.

Every Valheim skill ranges from level 0 to 100, and its bonus grows as the level climbs — the -50% stamina usage above is the full value you reach at level 100. Swim earns experience at 0.3 per second while swimming, so it climbs fastest when you use it deliberately.

Dying is the catch: each death drains roughly 5% of your level in every skill, Swim included, so a hard-won level erodes quickly on a dangerous run. To claw it back without the grind, run raiseskill Swim 10 — that adds ten levels at once, and you can pass any amount (or a negative number to lower it). Prefer a clean slate? resetskill Swim wipes the skill back to 0.