update · February 28, 2025

Icarus Week 169 Update Introduces Localized Tree Regrowth

Icarus Update 169 introduces the Localized Terraforming Device to restore harvested forests, alongside durability adjustments for defensive structures. The patch also previews upcoming free content tied to the Great Hunts expansion.

Players can now restore harvested forests using a new terraforming device in the Week 169 update. The patch also addresses building durability and sets the stage for upcoming expansion content.

Localized Terraforming and Tree Regrowth

The new Localized Terraforming Device functions similarly to the Thumper, but restores trees in a surrounding radius rather than replenishing ore. Powered devices consume either Condensed Enzymes, obtained by placing Vapor Condensors on geysers, or Synthetic Enzymes crafted at a Chemistry Bench.

Building Durability and Collision

Railing durability now scales correctly with buildable tiers. Reinforced railings increase from 500 to 750 durability, clay brick from 500 to 1,000, and concrete from 750 to 1,500. Wood, interior wood, reinforced wood, clay brick, and concrete railings also feature updated collision models allowing projectiles to pass through them.

Bug Fixes and Adjustments

Non-boss Black Wolves spawned by enzyme geysers now correctly count toward geyser progress. Client-side health bar initialization issues for the Sand Worm have been resolved, and the titanium crossbow mesh was re-imported with correct vertex normal settings.

Why this patch matters

Tree regrowth solves long-term persistent base building resource depletion, making open-world operations sustainable over time.