Logic Expansion Packs
The systems under a game: state machines, inventories, economies, quests, levels and more.
- 50 packs
- 40 free
- 3 new this week
50 packs in Logic
2D controlsNamed actions and move and aim axes for 2D games, from keyboard, gamepad and touch, for one to four players, with rebinding while the game runs.Logic · 2Dv3.0.0-0Free
3D AttachmentsParenting for 3D objects, keeping a turret on its tank, a weapon in a hand or a label on a crate as it moves, turns and scales.Logic · 3Dv3.0.0-2Free
3D Convex HullsTurns any loaded 3D model into a small convex wrap a physics solver can use, so rocks, ramps and odd shapes collide like themselves.Logic · 3Dv3.0.0-2Free
3D Geometry BuildersA mesh-modelling toolkit in code: primitives, lathes, sweeps, vessels, leaves, deformers, scattering, coating, plane slicing, polyhedral dice and CSG booleans.Logic · 3Dv3.0.0-4Free
3D model files (.glb, .obj)Loads model files made by an artist, glTF binary and Wavefront OBJ, as meshes the 3D world can spawn, with node and skinned animation.Logic · 3Dv3.0.0-1Free
3D pathsSmooth 3D curves through points with even-speed travel and frames that never twist, for roller coasters, rails, camera fly-throughs and rolling routes.Logic · 3Dv3.0.0-0Free
Cell dungeon mapNewA grid map for first-person corridor games and dungeon crawlers, with sliding doors, locks, secret walls, switches, collision, rays, sight, hearing and paths.Logicv3.0.0-0Pro
Chained path notationRoutes written as plain data, a start point and a chain of lines, beziers, arcs, spirals and waves, baked so followers move at an even speed.Logic · 2Dv3.0.0-0Free
Colour toolkitColour as data for any game, building, blending and shifting hex colours, generating rainbows, ramps and gradients, and choosing label colours that stay readable.Logicv3.0.0-3Free
Cooking stations and counterThe rules of a time-management cooking game, with stations that cook and burn, dishes built on plates in order, and customers at a counter who will not wait for ever.Logic · 2Dv3.0.0-6Pro
Customers and serviceThe guests of a service game from the door to the bill, with arrivals, a queue, seating, patience in hearts, orders, eating, paying and tips.Logic · 2Dv3.0.0-3Free
Drag to spin an objectThe model-viewer control, where you drag an object to turn it, flick it to keep it spinning and let it snap to a facing while the camera stays put.Logic · 3Dv3.0.0-3Free
Enormous decimal valuesForty-digit decimal arithmetic for idle-game currencies, prices and scores that outgrow ordinary numbers, with explicit rounding and readable formatting.Logicv3.0.0-4Free
Face where the pointer isTurns 3D objects to face the spot the pointer marks in the world, through the full circle and up or down, for turrets, twin-stick ships, heads and click-to-move characters.Logic · 3Dv3.0.0-3Free
Flexible diceDice of any kind for any game, numeric or symbolic, weighted, mixed in one pool and held between rolls, with reproducible rolls, saves and exact probabilities.Logicv3.0.0-2Free
Fog of warTile-grid fog of war with shadowcast lights, a brightness for every cell and a memory of what the player has already seen.Logic · 2Dv3.0.0-3Free
Game mathsThe everyday maths of a game in one place: easing curves, 2D vectors, angles, ranges, smoothing, hit tests and a seed hash.Logicv3.0.0-3Free
GeometryShapes and curves as plain data, with the maths games ask of them: points along, random points inside, containment, intersections, overlaps and transforms.Logic · 2Dv3.0.0-3Free
Grid lane walkerA four-way walker for maze and grid games that moves from tile centre to tile centre, with buffered turns, arcade cornering, wrap tunnels and snapshots.Logicv3.0.0-0Free
Idle economy progressionThe rules of an idle tycoon game: business ladders and mine pipelines with enormous costs, timed cycles, managers, upgrades, prestige and capped catch-up.Logicv3.0.0-4Pro
Independent renovation progressionCredits, stored items, atomic shopping baskets, unlockable areas and installed decorations for a renovation meta-game, with saves that survive changes to the catalogue.Logicv3.0.0-2Pro
Lane controlParallel lanes of moving things with exact spacing, for road traffic, river logs, diving turtles, conveyor belts, queues and timed release streams.Logicv3.0.0-3Free
Level generatorsSeeded mazes, roguelike dungeons and cellular caves, each with the path and placement queries a game needs and a tile grid ready to draw.Logic · 2Dv3.0.0-4Free
Level saga progressionNewThe meta-game around a level-based puzzle, with a level map, lives on a timer, coins, boosters, win streaks, continues and timed events, for any puzzle pack.Logicv3.0.0-0Pro
Navigation Grid and Flow FieldPathfinding for 2D tile maps and 3D terrain: A-star routes straightened for walkers of any size, and flow fields for hordes heading to one place.Logic · 2D and 3Dv3.0.0-5Free
Noise and procgenSeeded noise for 2D and 3D games, Perlin, value, Worley, fractal sums, curl flow and hashes, sampled as numbers or painted into tileable textures.Logic · 2D and 3Dv3.0.0-4Free
On-screen touch controlsOn-screen buttons and a thumb stick for phones that press key codes, so touch drives the very same bindings as the keyboard.Logic · 2Dv3.0.0-4Free
PartyThe adventuring party of a role-playing game: heroes who level up, gear in slots, a shared bag and purse, potions and a shop, all savable.Logicv3.0.0-0Free
Paths and walkersMoves things along any 2D curve at an even speed, for swooping enemy waves, looping platforms, spiralling bosses and camera rides.Logic · 2Dv3.0.0-3Free
Per-object pointer handlersGives any object over, out, down, up, tap and drag handlers, with the capture rule that keeps a drag alive after the pointer leaves the object.Logic · 2Dv3.0.0-3Free
Procedural models3D models written as data rather than loaded from files: a tree of posed, painted parts with smooth forms, patterns, see-through materials and animation clips.Logic · 3Dv3.0.0-5Free
Property tweensAnimates any number or hex colour on any object over time, with easing, delays, loops and yoyo, on the fixed clock so it pauses and replays with the game.Logicv3.0.0-3Free
QuestsA quest log for any game, with ordered steps of kinds you can add, givers who offer and take back quests, acts that open as the story advances, and saves.Logicv3.0.0-0Free
Recast navmesh and crowdsUpdatedA real navigation mesh baked from your level's geometry, for 3D routes over bridges, up ramps and under arches, with crowds that steer round each other.Logic · 3Dv3.0.0-5Free
Road dataUpdatedA versioned JSON road file for racing and driving games, with bends, hills, forks and merges, lanes, regions with seeded scenery, surfaces, ramps and markers, sampled at any distance.Logic · 2Dv3.0.0-4Free
Role-playing gamePlays a world document as a complete small role-playing game, with an overworld, towns, fog-of-war dungeons, turn-based battles, quests, shops, inns and saves, and no game code.Logic · 2Dv3.0.0-4Pro
RPG worldA role-playing game's whole content as one JSON document, cleaned so it is always valid, and the generators that turn it into an overworld, towns and dungeon floors.Logic · 2Dv3.0.0-0Free
Saved dataA small key-value store for high scores, settings, unlocks and checkpoints, kept as JSON under a namespace, that never throws when the browser will not keep it.Logicv3.0.0-3Free
Sector mapNewLevels for 2.5D shooters as plain JSON: polygon sectors with floor and ceiling heights, doors, lifts, crushers, triggers, kit-bash pieces, character grids and ready meshes.Logicv3.0.0-0Pro
Settlement survivalVillage survival rules on a work yard, where villagers eat, keep warm and rest through the seasons, houses draw newcomers, and the village must last the year.Logic · 2Dv3.0.0-3Pro
State machines and game flowState machines for everything with modes, from an enemy's patrol, chase and death to the game's own attract, play and game-over flow.Logicv3.0.0-4Free
Steering Behaviours and FlockingAgents that decide where to go by blending behaviours into one force, to seek, flee, wander, flock, avoid, follow paths, navigate routes and ride flow fields, in 2D or 3D.Logic · 2D and 3Dv3.0.0-5Free
Table-service floorRestaurant time-management rules, where you seat each waiting party and send a walking server through orders, tickets, food, checks, clearing and bussing, with combos for repeated tasks.Logic · 2Dv3.0.0-5Pro
Terrain RiderRides a board, kart, ball or walker over a height field without jitter, following the slope and catching air off lips, with the exact frame it lands.Logic · 3Dv3.0.0-3Free
Title, pause and game overThe title, pause and game-over scenes every game needs, with the run's score and a best score to beat, ready from the first build.Logic · 2Dv3.0.0-4Free
Track networksA directed network of curved routes with walkers that travel it at even speed, choose a branch at each junction and know how far they are from the goal.Logic · 2D and 3Dv3.0.0-4Free
Turn battleClassic turn-based battles as a state machine over plain data, with speed order, attacks, skills, items, defending, fleeing, an element wheel, criticals and a Break gauge.Logicv3.0.0-0Free
Visibility and line of sightAnswers the three questions a 2D game asks of its walls, what can be seen from here, can this point see that one, and what does a ray hit first.Logic · 2Dv3.0.0-4Free
Voxel EditorPoint at a block and change it, with debounced raycast targeting, held-button cadence, multi-hit mining by hardness and a guard against placing a block inside yourself.Logic · 3Dv3.0.0-3Free
Worker jobsWork yards for colony and production games, where workers fetch inputs, work them at sites and haul the outputs, with reservations, roles, skills and shared tools.Logic · 2Dv3.0.0-4Pro