About 2D Game Builder PRO
Design and play your own 2D platformers and top-down adventures. Customize player skin, jump force, speed, gravity, friction, enemy AI. 12 block types, 7 enemy behaviors, 6 player skins, 6 physics presets. Export levels as JSON. Free, no sign-up.
How to use
- Pick a game type — Platformer (side-scrolling with gravity) or Top-Down.
- Browse tile categories: Core (player, goal, spikes), Blocks (12 types), Items (coins, gems, keys, springs), Enemies (7 AI types).
- Click or drag on the grid to paint. Click the same tile again to move it.
- Open the Player Tuning panel to pick a skin, set lives, adjust jump force and move speed.
- Open Physics to tune gravity, max fall speed, air control, and friction — or pick a preset (Classic, Floaty, Snappy, Moon, Heavy, Speedrun).
- Hit Play. Arrows/WASD + Space. Collect coins, grab keys, stomp enemies, reach the goal.
- Export your level as JSON to share with friends — or save in the browser.
Frequently asked questions
What can I build?
Full 2D platformer or top-down levels. 12 block types (ice, lava, cloud, bouncy, breakable), 7 enemy AI behaviors (patrol, fly, chase, turret), 6 player skins, keys/doors, springs, checkpoints, particles, and a score system.
Can I tune the physics?
Yes — sliders for gravity, jump force, max fall speed, move speed, air control, and friction. Plus 6 one-click presets (Classic, Floaty, Snappy, Moon, Heavy, Speedrun) to swap the feel instantly.
Can I share levels?
Yes. Export as JSON downloads a file you can share. Anyone can Import it back into the builder to play. Save also stores it in your browser between sessions.
Part of ToolFluency’s library of free online tools for Creative. No account needed, no data leaves your device.