Partly updated for Enshrouded 1.0— 1.0: the unlock cost; the rest is pre-1.0 wiki data

Runner
Sprinting speed increased by 10% and stamina consumption decreased by 10%
Where Runner sits on the 1.0 tree
In the Ranger area. The cheapest way in from a starting point buys 2 nodes for 2 points, this one included (one rank each).
- 1Endurance1p
- 2Runner1p
Builds that use Runner
3 preset builds tagged RUNNER — defining picks first, then ranked by tier (S → A → B).
- Ranger SniperRanger
Bow damage and crits: Marksman, Sniper and Skill Shot at full rank, Bow Specialization for the bow's special ability, Fatal Precision and Vitality Surge to keep the crits paying.
- Solo Adventurer HybridHybrid
A bit of everything for playing alone: Marksman and Skill Shot for the bow, Battle Heal and Warrior's Path for melee, Healer, Counterstrike and Fire Resistance, Runner and Saviour.
- Multi-Shot BowmasterRanger
Volleys: Multi Shot with Spread and Trigger, Marksman and Ranger at full rank, Barrage and Rebound. Ricochets and Rebound II are not on the 1.0 tree.
Related Ranger skills
Same archetype — likely candidates to slot next to Runner in a build.
Airborne1pValues in the 1.0 files: 12% per rank, 3 ranks.
Arachnoid1pValues in the 1.0 files: 20% per rank, 3 ranks.
Backstab Mastery1pValues in the 1.0 files: 20% per rank, 3 ranks.
Blessed Arrows1pValues in the 1.0 files: 8 per rank, 3 ranks.
Counter Battery1pValues in the 1.0 files: 8% per rank, 3 ranks.
Dexterity1pIncreases your Dexterity attribute by 1 Increases Bow and Dagger damage by 5% per Attribute Point
Eagles Bane1pDamage against flying enemies increased by 30%.
Endurance1pIncreases your Endurance attribute by 1 Increases Stamina by 10 per Attribute Point
Sources: game files 1.0 + Keen Games 1.0 patch notes (changelog, combat changes) for the unlock cost; enshrouded.wiki.gg (pre-1.0) for the description and effects.