Everything Rengy does, by area.

Dock, stack and float panels. Each project keeps its own layout.

Guide: The editor

Run the room inside the editor, one step at a time when you need to.

Guide: The editor

Your project in a window of its own, through the same player an export ships.

Guide: The editor

Nodes set up to do nothing, and files that have gone, listed while you build.

Guide: Scenes and nodes

Save a node and its children once, place copies, and let one copy keep values of its own.

Guide: Scenes and nodes

A script is a component. Its fields are Inspector rows.

Guide: Rengy Script

React when a node is created, moves, is entered or lands.

Guide: Rengy Script

await a delay, a signal or an anneal, and carry on from that line.

Guide: Rengy Script

Move, turn, scale or fade a node over time, along any of 45 curves.

Guide: Rengy Script

Nodes tell each other things without knowing who listens.

Guide: Characters and physics Tutorial: Worlds and Levels: Cause and effect Reference: Signal

Copies of a saved node made by a script while the game runs: lasers, enemies, explosions.

Guide: Rengy Script Tutorial: Ship Evader: Firing Reference: Spawner

Name your controls as actions, bind keys to them, and read them from a script.

Guide: Input

A countdown that tells a script when it runs out.

Tutorial: Navigation and AI: Timers Reference: Timer

Radius, colour, intensity and softness in the Inspector. A cone fades at its edge, and moonlight washes the whole room from one direction.

Guide: Lighting and shadows Tutorial: Light and Shadow: A lantern Reference: Light

Give a thing an Occluder, a box or an outline you draw, or mark a tile layer, and it casts a shadow that moves and turns with it, hard or soft. Nothing is baked.

Guide: Lighting and shadows Tutorial: Light and Shadow: Shadows Reference: Occluder

How dark a lit room is where no lamp reaches.

Guide: Lighting and shadows Tutorial: Light and Shadow: Light starts from darkness Reference: AmbientLight

Lights that add a glow past a wall’s own colour, take light away, or paint their colour over the room.

Guide: Lighting and shadows Tutorial: Light and Shadow: Sprites in the light Reference: Light

Generate a normal map from a picture’s import settings, and the lamps rake across its bricks, in the editor and in an exported game.

Guide: Lighting and shadows Tutorial: Light and Shadow: Depth from normal maps Reference: Sprite

The stats overlay counts light draws, shadows and light passes, and the Render menu previews a phone’s tier.

Guide: Debugging Tutorial: Light and Shadow: Light on a phone

Give one light a shader of its own: toon bands, or a candle’s wavering ring.

Guide: Effects and shaders Tutorial: Light and Shadow: Your own falloff Reference: LightShader

A node, its components, and its children. That is the whole model.

Guide: Scenes and nodes

Name each part of a sheet once, and stretch a framed panel without smearing its corners.

Guide: Sprites and art Reference: Sprite

Paint a room on layers. A terrain lays its own corners, and a solid layer makes its own collision.

Guide: Tilemaps Tutorial: Worlds and Levels: A tilemap Reference: TileMap

A ledge’s edge art, fill and collision, all from one line of points.

Guide: Terrain and shapes Tutorial: Worlds and Levels: Hills Reference: SpriteShape

Show a sprite only inside another shape, or only outside it.

Guide: Terrain and shapes Tutorial: Worlds and Levels: In the dark Reference: SpriteMask

Water, scree or a far cliff: an outline of points filled with a colour, or a picture stretched across it or tiled.

Guide: Terrain and shapes Tutorial: Worlds and Levels: Water and stone Reference: Polygon

Triangles you colour and map point by point, typed in or made from a Polygon in one press.

Guide: Terrain and shapes Tutorial: Worlds and Levels: Made to measure Reference: Mesh

One shape drawn at every placement, each turned, sized and tinted its own way: grass painted over a hill with a brush.

Guide: Terrain and shapes Tutorial: Worlds and Levels: The meadow Reference: MultiMesh

A cart and its wheel drawn as one, so nothing slips between them, even among figures that sort by Y.

Guide: Terrain and shapes Tutorial: Worlds and Levels: Stacked and grouped Reference: SortingGroup

Signs and name tags standing in the world, in a font of your own, with an outline and a shadow.

Tutorial: Worlds and Levels: Words in the world Reference: WorldText

One node stands in for a room until a script asks for it; then the room is built from its artifact, in the editor and in an exported game alike.

Tutorial: Worlds and Levels: Spawning and streaming Reference: Placeholder

Follow the player, and stop at the walls.

Guide: Cameras Tutorial: Cameras and Framing: The town’s walls Reference: Confiner

Follows the player with a dead zone, a look-ahead and a settle, and blends to a locked shot for a boss, in the editor and in an exported game.

Tutorial: Cameras and Framing: Following Reference: CameraRig

Backdrops that move at a fraction of the camera’s speed, or drift on their own and repeat as a whole.

Guide: Cameras Tutorial: Cameras and Framing: Depth Reference: Parallax

A whole-number zoom picked for any window size.

Guide: Sprites and art Tutorial: Cameras and Framing: Crisp pixels Reference: PixelPerfect

Walk and jump on your project’s controls or on a script’s say, with coyote time, a jump buffer, a short hop and a second jump in the air, climb steps, and land on ledges you jump up through.

Guide: Characters and physics Tutorial: Crypt Knight: The knight Reference: CharacterBody

Pressure plates, pickups and checkpoints that notice another Area coming in.

Guide: Characters and physics Reference: Area

Clips packed from your pictures, played frame by frame.

Tutorial: Ship Evader: Effects Reference: AnimatedSprite

Keys on a timeline for any field: move, turn, fade or dim a node, with eases, loops and a rest pose.

Tutorial: Animation and Cutscenes: Keyframes Reference: PropertyAnimation

Idle, run, jump: a graph decides which clip plays.

Tutorial: Animation and Cutscenes: A state machine Reference: StateMachine

Rigs that reach, and ragdolls that fall.

Tutorial: Animation and Cutscenes: A marionette Reference: Bone

Show, move, play and fade, on one timeline.

Tutorial: Animation and Cutscenes: The opening Reference: Timeline

Things on chains, springs and hinges.

Tutorial: Physics and Mechanisms: The pendulum Reference: Joint

Things that patrol a curve or find their way.

Tutorial: Navigation and AI: Walking it Reference: NavAgent

Wind, magnets, conveyors and water.

Tutorial: Physics and Mechanisms: The updraft Reference: Effector

Your own shader code on a sprite, with its parameters as Inspector rows.

Guide: Effects and shaders Tutorial: Cameras and Framing: Through the glass Reference: ShaderMaterial

Heat haze, water and glass: a shader that bends the room behind it.

Guide: Effects and shaders Tutorial: Cameras and Framing: Through the glass Reference: ScreenCopy

The room drawn a second time, into a picture a sprite shows.

Guide: Effects and shaders Tutorial: Cameras and Framing: A map in the corner Reference: Viewport

Crop sprites, shapes and lines to a rectangle: a portrait in its frame, a bar that fills.

Guide: Effects and shaders Reference: Clip

A glow on whatever is brightest, widened by its Spread without a pass more, and a colour grade over the scene.

Guide: Effects and shaders Tutorial: Ship Evader: Effects Reference: PostVolume

Smoke, rain, fire, sparks and fireflies from one emitter, every number in the Inspector, and a panel that counts how many are alive.

Tutorial: Particle Effects: One emitter Reference: ParticleEmitter

Colour, size, speed and spin across a particle’s life, flipbook sheets, streaks, trails and a drifting noise field.

Tutorial: Particle Effects: Curves and gradients Reference: ParticleEmitter

Prewarm runs an emitter before the first frame, so chimneys, fog and fireflies are there when the room opens.

Tutorial: Particle Effects: Bursts and prewarm Reference: ParticleEmitter

Attractors that pull particles in, push them away or swirl them round, in Play and in an exported game.

Tutorial: Particle Effects: Forces Reference: ParticleAttractor

Rain that stops on the roofs and bounces off the street: particles meet the room’s colliders and solid tiles.

Tutorial: Particle Effects: Collision Reference: ParticleEmitter

A particle that dies spawns an effect where it died: a splash for every raindrop, a burst for every firework shell.

Tutorial: Particle Effects: Particles that make particles Reference: ParticleEmitter

A script fires a burst, restarts a puff, switches an emitter on and off, and hears particles cross a region.

Guide: Rengy Script Tutorial: Particle Effects: Particles and scripts

A shader on an emitter reads four numbers each particle carries: sparks each in a colour of its own.

Guide: Effects and shaders Tutorial: Particle Effects: Light, glow and your own look Reference: ShaderMaterial

A ribbon behind anything that moves, tapering and fading, in Play and in an exported game.

Tutorial: Particle Effects: Light, glow and your own look Reference: Trail

The stats overlay counts every particle drawn, and a phone’s budget is the pixels big soft particles cover.

Guide: Debugging Tutorial: Particle Effects: Particles on a phone

Louder as the listener gets closer, and heard from the side they are on.

Guide: Audio Tutorial: Sound and Music: Near and far Reference: AudioSource

A pickup that chimes, a machine that falls quiet, a gate that winds up as it opens: a script plays, stops and changes named sounds.

Guide: Audio Tutorial: Sound and Music: Sounds from a script

A level’s track or a script’s, one at a time: a new one takes over, and asking for the one playing leaves it playing.

Guide: Audio Tutorial: Sound and Music: Music

Master, Music and Sfx, each set from a script or a slider on an options screen.

Guide: Audio Tutorial: Sound and Music: The mix

Effects on each bus, named mixes to slide between, places that change the mix while you stand in them, and one bus ducking under another.

Guide: Audio Tutorial: Sound and Music: Echoes and water Reference: AudioMix

Named moods with rules for moving between them, a cut, a crossfade or at the loop’s end, and layers a script turns up and down in step.

Guide: Audio Tutorial: Sound and Music: Moods

A folder holding your game, for the system the editor runs on. Whoever you send it to needs no Rengy.

Guide: Exporting

A script ends a level as won or lost: a goal to reach, a time limit to beat.

Guide: Levels and endings

A title, the game and a game-over screen, each a scene of its own, with a script moving between them.

Tutorial: Ship Evader: Screens

A Console that folds repeats, a frame’s costs, and a script call that pauses Play at the moment it matters.

Guide: Debugging

Preview a room at a phone’s quality tier, and keep it cheap to draw. A phone build needs the engine source, and a project of scenes and scripts cannot be built yet.

Guide: Android

Rooms played one after another in the order the Levels panel lists, each with its own music and a screen to open after the last, in the editor and in an exported game.

Guide: Levels and endings Tutorial: Crypt Knight: Levels

Keep a player’s best score and settings between runs.

Tutorial: Ship Evader: Score and HUD

Named slots that keep a run, text as well as numbers, and forget it when asked.

Tutorial: Interfaces: Save slots