Foundations
First big engine update. Faster, smoother, smarter — and a small mountain of fixes.
May 4, 2026 · engine v4.1.0
Spawn's first big engine update. Faster, smoother, smarter — and a small mountain of fixes.
- Huge engine perf upgrade. The whole renderer was rebuilt, terrain streams better, and big scenes draw faster and smoother.
- Savi's tools are way more reliable, and she can now see and poke at your game's UI — huge unlock for UI-heavy games (Discord-style chat games, dashboards, card games, etc.).
- Multiplayer feels much smoother — camera, controls, and effects (vignettes, particles, music swells) all stay in sync now instead of glitching during rollback.
- Hundreds of fixes — actually hundreds. Screen flashes, object juice, screenshots, voxel marks, query ordering, and a long tail of small things that used to glitch now just work.
- New animation stuff! Savi can now tween any property on any object — bounce a chest open, pulse a crystal, fade things in, flash red on hit. More animation features coming soon.