engine v4.3.0

Groovy

May 13, 2026

Savi is your DJ now. God mode, movement, and controls all feel right

what's new

Savi is your DJ now. Ask her for a song and she'll score your game live — the music reacts to what's happening, so when things get tense, the music gets tense.
No more jitter. Players and cars walk and drive clean.
Controls feel right. What you press is what you get.
God mode pointer works again. Clicking and dragging in build mode is fixed. Bigger god mode upgrades coming soon.
Way more clouds. Skies can be way more dramatic without slowing things down.

›technical notes

Vibe: new live-coded music system + sample library (#6442). .vibe files, mini-notation, transport API, vibe skill. Vibes read game state and modulate voices in real time.
BREAKING: DrawInterpolationValue changed from { teleportThreshold } | null to { kind: 'enabled', teleportThreshold } | { kind: 'disabled' }. See migration notes.
Movement smoothing: entity smoother half-life now matches camera smoother — fixes player/car walk jitter (#6462). Interpolation on by default (1.25m threshold; 20m for control targets). All players interpolate, not just self (#6441). New SimTickInterval component + ThrottleResource pipe effective tick rate to renderer.
Input pipeline redesign (#6470): raw capture on main thread, worker-side resolution, epoch removed. Preserve input runway after fullsync (#6478).
Raycast + god mode unified (#6445): single pointer ray, single drag state.
Render: draw/cloud-clusters removed, replaced by GPU-instanced draw/sprite-instances (#6452).
Reliability: networking-tail prod fixes (#6451), diagnostic signals for stuck rooms (#6467).
Skills: Minecraft prompts route to voxel-terrain (#6464). Stale persistence refs removed from Savi prompt (#6441).

engine v4.3.0

May 13, 2026

Savi is your DJ now. God mode, movement, and controls all feel right

Savi is your DJ now. Ask her for a song and she'll score your game live — the music reacts to what's happening, so when things get tense, the music gets tense.
No more jitter. Players and cars walk and drive clean.
Controls feel right. What you press is what you get.
God mode pointer works again. Clicking and dragging in build mode is fixed. Bigger god mode upgrades coming soon.
Way more clouds. Skies can be way more dramatic without slowing things down.

›technical notes

Vibe: new live-coded music system + sample library (#6442). .vibe files, mini-notation, transport API, vibe skill. Vibes read game state and modulate voices in real time.
BREAKING: DrawInterpolationValue changed from { teleportThreshold } | null to { kind: 'enabled', teleportThreshold } | { kind: 'disabled' }. See migration notes.
Movement smoothing: entity smoother half-life now matches camera smoother — fixes player/car walk jitter (#6462). Interpolation on by default (1.25m threshold; 20m for control targets). All players interpolate, not just self (#6441). New SimTickInterval component + ThrottleResource pipe effective tick rate to renderer.
Input pipeline redesign (#6470): raw capture on main thread, worker-side resolution, epoch removed. Preserve input runway after fullsync (#6478).
Raycast + god mode unified (#6445): single pointer ray, single drag state.
Render: draw/cloud-clusters removed, replaced by GPU-instanced draw/sprite-instances (#6452).
Reliability: networking-tail prod fixes (#6451), diagnostic signals for stuck rooms (#6467).
Skills: Minecraft prompts route to voxel-terrain (#6464). Stale persistence refs removed from Savi prompt (#6441).