Engine v5.1.12

July 7, 2026

A patch to Connection.

Fixed a reconnect trap that could freeze a player's world forever: if the room restarted while a tab stayed open, that player could get stuck repairing hundreds of times and never recover without a reload. Recovery now works in one clean step.
Fixed a timing window where changes Savi made right as a place was loading could report success but never reach players or the save — the room quietly ran a different world than the one on disk until a restart. If the two ever drift again, the engine now says so instead of staying silent.
Saving your changes is much harder to lose now: if the save path hits server hiccups (timeouts, gateway errors), the engine keeps retrying in order until it lands — and if it truly can't land, Savi is told loudly. Before, a bad enough hiccup could quietly drop the change and you'd only notice much later.
The "world stopped updating" self-repair no longer thrashes: repair attempts now back off and stop at a bound, and when repair can't win, the engine reports exactly why — instead of silently rebuilding a player's whole world every few seconds for half an hour.
Script-generated shapes now show up for every player: geometry a script invents at runtime (custom meshes, procedural props) used to exist only for the player whose world spawned it — everyone else stared at nothing while the engine retried forever. Now the recipe travels to every client and each one builds the shape locally.
Squash and shake effects can no longer permanently deform or teleport an object when timing goes wrong — they're pure visual juice now, and the object's real size and position stay untouched no matter what interrupts the animation. Squash also lands a touch crisper. (Worlds already stuck with a deformed object: restart the room once on this version and the fix sticks.)
You can now say what a rotation rotates around: pivot: "center" to spin in place, "top" to hang and swing, or a door hinged at its edge — on any object, with no invisible hinge-parent tricks. Colliders, nameplates, and anything attached follow exactly, and it works the same on parents and children.
2D sprites can finally bank and tilt: a lobbed projectile tips its nose along the arc, a leaning character actually leans — sprites now show the rotation their physics always had, turning around the same anchor point the art and hitbox share.
Objects spawned by scripts now behave exactly like objects placed in the world from the start: NPC behavior, custom 2D colliders, and IK settings (like turning off automatic foot-grounding) all land identically either way — no more "it works when it's in the spec but not when a script spawns it."
Fixed a race where a command aimed at a just-spawned object could be lost — spawn-then-command now always works.
Switching camera styles no longer leaves your body wrongly invisible (or wrongly visible): the old camera's "hide me" setting dies with the camera that set it, in both directions — first-person hides you, third-person shows you, every time, without restarting.
Looping sounds now stop when the thing making them goes away: destroying an object, swapping its sound clip, or moving to another area no longer leaves a loop droning forever until the page reloads — and api.stopSound actually stops the sound.
Savi's scripts work on the first try regardless of import/export style: both dialects (export function and module.exports) are accepted everywhere — behaviors, shared modules, UI, effects — and when a module still fails to compile, the error explains exactly what to change instead of a cryptic parser message.
Clearing a player's model no longer makes them invisible: players fall back to their profile avatar instead of silently rendering nothing. (Deliberately body-less characters are still one explicit setting away.)
One catastrophically slow session can no longer curse your game into opening blurry forever after on that browser: saved quality settings now start no lower than "everything visible," and the emergency low-quality modes have to be re-earned by actual measurement each session instead of being remembered as the default.
When a script can't run and the engine knows why — a behavior whose script file is missing mid-edit, or a manager paused because no one is in that area — Savi now gets told exactly what's inert and why, instead of you both staring at "my code isn't doing anything."
A script repeating the same small mistake thousands of times no longer floods the logs and drowns out everything else: the engine teaches the mistake once, in full, then keeps a quiet count — so Savi's view of your game's logs stays readable.
While we run an engine-stability push, the engine reports much more of what happens on players' screens (including renderer warnings that used to stay invisible to us) — so the bugs you feel get found from our side, without you filing anything.
Phones whose graphics support can't run the engine (a class of older/budget Androids) now see an honest "this device's graphics support isn't enough" message instead of loading into a broken world where sprites show but every textured or scripted material is invisible.
When a texture permanently fails to load, Savi can now see it in the logs (with the reason) instead of the object silently keeping a placeholder forever.
Custom cameras that position and aim themselves entirely from script (cinematic rigs, planet-surface cameras, shot-follow cams) now always show exactly what the script authored. Previously, if such a camera never used lookAt(), the engine's mouse-orbit camera could silently take over the view — pointing the camera somewhere the script never sent it (even through the ground). Mouse-look cameras are unaffected and stay just as smooth.
Scripted-geometry meshes that mix solid parts with translucent parts (a ship hull with a glowing afterburner cone, a building with glass windows) now render correctly: the solid parts stay solid — they hide what's behind them and cast shadows — while only the translucent parts are see-through. Previously one translucent detail made the entire mesh ghostly, letting internals show through hulls and turning the object's shadow off.
Cars can now feel their tires! Each wheel reports how hard it's sliding, how much grip it has left, how much weight it's carrying, and what surface it's touching — perfect for skid marks, tire smoke, drift scoring, and ice/dirt/road grip changes.
Long-running, high-action worlds stay fast: an internal history log used to get fully re-packed every single tick, quietly eating a bigger and bigger slice of each frame as a busy world accumulated history. It now only tidies up when there's real garbage to clear, so big worlds keep their speed.

Engine v5.1.12

July 7, 2026

A patch to Connection.

Fixed a reconnect trap that could freeze a player's world forever: if the room restarted while a tab stayed open, that player could get stuck repairing hundreds of times and never recover without a reload. Recovery now works in one clean step.
Fixed a timing window where changes Savi made right as a place was loading could report success but never reach players or the save — the room quietly ran a different world than the one on disk until a restart. If the two ever drift again, the engine now says so instead of staying silent.
Saving your changes is much harder to lose now: if the save path hits server hiccups (timeouts, gateway errors), the engine keeps retrying in order until it lands — and if it truly can't land, Savi is told loudly. Before, a bad enough hiccup could quietly drop the change and you'd only notice much later.
The "world stopped updating" self-repair no longer thrashes: repair attempts now back off and stop at a bound, and when repair can't win, the engine reports exactly why — instead of silently rebuilding a player's whole world every few seconds for half an hour.
Script-generated shapes now show up for every player: geometry a script invents at runtime (custom meshes, procedural props) used to exist only for the player whose world spawned it — everyone else stared at nothing while the engine retried forever. Now the recipe travels to every client and each one builds the shape locally.
Squash and shake effects can no longer permanently deform or teleport an object when timing goes wrong — they're pure visual juice now, and the object's real size and position stay untouched no matter what interrupts the animation. Squash also lands a touch crisper. (Worlds already stuck with a deformed object: restart the room once on this version and the fix sticks.)
You can now say what a rotation rotates around: pivot: "center" to spin in place, "top" to hang and swing, or a door hinged at its edge — on any object, with no invisible hinge-parent tricks. Colliders, nameplates, and anything attached follow exactly, and it works the same on parents and children.
2D sprites can finally bank and tilt: a lobbed projectile tips its nose along the arc, a leaning character actually leans — sprites now show the rotation their physics always had, turning around the same anchor point the art and hitbox share.
Objects spawned by scripts now behave exactly like objects placed in the world from the start: NPC behavior, custom 2D colliders, and IK settings (like turning off automatic foot-grounding) all land identically either way — no more "it works when it's in the spec but not when a script spawns it."
Fixed a race where a command aimed at a just-spawned object could be lost — spawn-then-command now always works.
Switching camera styles no longer leaves your body wrongly invisible (or wrongly visible): the old camera's "hide me" setting dies with the camera that set it, in both directions — first-person hides you, third-person shows you, every time, without restarting.
Looping sounds now stop when the thing making them goes away: destroying an object, swapping its sound clip, or moving to another area no longer leaves a loop droning forever until the page reloads — and api.stopSound actually stops the sound.
Savi's scripts work on the first try regardless of import/export style: both dialects (export function and module.exports) are accepted everywhere — behaviors, shared modules, UI, effects — and when a module still fails to compile, the error explains exactly what to change instead of a cryptic parser message.
Clearing a player's model no longer makes them invisible: players fall back to their profile avatar instead of silently rendering nothing. (Deliberately body-less characters are still one explicit setting away.)
One catastrophically slow session can no longer curse your game into opening blurry forever after on that browser: saved quality settings now start no lower than "everything visible," and the emergency low-quality modes have to be re-earned by actual measurement each session instead of being remembered as the default.
When a script can't run and the engine knows why — a behavior whose script file is missing mid-edit, or a manager paused because no one is in that area — Savi now gets told exactly what's inert and why, instead of you both staring at "my code isn't doing anything."
A script repeating the same small mistake thousands of times no longer floods the logs and drowns out everything else: the engine teaches the mistake once, in full, then keeps a quiet count — so Savi's view of your game's logs stays readable.
While we run an engine-stability push, the engine reports much more of what happens on players' screens (including renderer warnings that used to stay invisible to us) — so the bugs you feel get found from our side, without you filing anything.
Phones whose graphics support can't run the engine (a class of older/budget Androids) now see an honest "this device's graphics support isn't enough" message instead of loading into a broken world where sprites show but every textured or scripted material is invisible.
When a texture permanently fails to load, Savi can now see it in the logs (with the reason) instead of the object silently keeping a placeholder forever.
Custom cameras that position and aim themselves entirely from script (cinematic rigs, planet-surface cameras, shot-follow cams) now always show exactly what the script authored. Previously, if such a camera never used lookAt(), the engine's mouse-orbit camera could silently take over the view — pointing the camera somewhere the script never sent it (even through the ground). Mouse-look cameras are unaffected and stay just as smooth.
Scripted-geometry meshes that mix solid parts with translucent parts (a ship hull with a glowing afterburner cone, a building with glass windows) now render correctly: the solid parts stay solid — they hide what's behind them and cast shadows — while only the translucent parts are see-through. Previously one translucent detail made the entire mesh ghostly, letting internals show through hulls and turning the object's shadow off.
Cars can now feel their tires! Each wheel reports how hard it's sliding, how much grip it has left, how much weight it's carrying, and what surface it's touching — perfect for skid marks, tire smoke, drift scoring, and ice/dirt/road grip changes.
Long-running, high-action worlds stay fast: an internal history log used to get fully re-packed every single tick, quietly eating a bigger and bigger slice of each frame as a busy world accumulated history. It now only tidies up when there's real garbage to clear, so big worlds keep their speed.