Side by side
Impact.js vs WASM-4
Both stand on game engine software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan AndroidiPhoneWeb
Impact.js provides a free JavaScript game engine with editing, debugging, and several export paths. Its dated release and archived forums should be weighed against the included tooling and target platforms.
Visit Impact.js Free plan LinuxMacWeb+1
WASM-4 offers a tightly defined environment for small WebAssembly games, with practical tooling and multiple release formats. Its strict memory, cartridge, display, and netplay limits shape the kinds of projects it can support.
Visit WASM-4The facts
| Impact.js | WASM-4 | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Android, iPhone, Web | Linux, Mac, Web, Windows |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 1 | 1 |
| Maker | Not published | Not published |
| Website | impactjs.com | wasm4.org |
| On game engine software | #58 of 92 | #54 of 92 |
Impact.js: what it does well
- Free under the MIT License
- Includes a 2D level editor
- Provides runtime debugging tools
- Supports browser and mobile targets
- Offers Ejecta packaging for iPhone
What to know first
- Current listed release dates from 2014
- Forums are read-only
- Mobile platforms have performance and audio limits
- HTML5 browser support is required
WASM-4: what it does well
- Free and open-source project
- Supports several WebAssembly-compatible programming languages
- Provides local and online multiplayer for four players
- Bundles standalone HTML and native executables
- Includes keyboard, mouse, touchscreen, and gamepad input
What to know first
- Display is limited to 160×160 pixels
- Cartridges are limited to 64 KB
- Linear RAM is limited to 64 KB
- Netplay disables mouse input and save states
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