Side-by-side comparison of two listed Games — real listing data only, no paid placement.
On record, they differ in: unique tags (ct.js 4: #game-engine #2d #javascript +1 more vs jPCT 3: #3d-engine #java #android); category rank (ct.js #23 vs jPCT #42). Same pricing model (Free) and category (Games). Listing facts only — not a recommendation.
Free 2D game engine based on web technologies with visual tools
ct.js is a free 2D game engine built on web technologies that aims to make learning programming fun and game development easy. It combines visual tools, documentation and a flexible modular library, with several coding language options and localized versions.
Published 2026-08-13 · Links checked 2026-09-06
Free 3D engine for Java and Android with OpenGL support
jPCT is a 3D engine for desktop Java and Android featuring texture mapping, gouraud shading, environment and bump mapping, collision detection, octree and portal rendering, multi-texturing and shaders. It supports OpenGL via LWJGL and OpenGL ES, free for private and commercial use.
Published 2026-08-13 · Links checked 2026-09-06
| ct.js | jPCT | |
|---|---|---|
| Pricing | Free | Free |
| Category | Games | Games |
| Rank in Games | Position #23 of 74 | Position #42 of 74 |
| Alternatives listed | 12 → | 12 → |
| Shared tags | none | |
| Unique tags | #game-engine #2d #javascript #open-source | #3d-engine #java #android |
| Platforms | Windows | Not detected on official site (checked 2026-09-20) |
| Source code | github.com/ct-js/ct-js | Not detected on official site (checked 2026-09-20) |
| Documentation | docs.ctjs.rocks/ | Not detected on official site (checked 2026-09-20) |
| Official channels | X (Twitter)declared on ctjs.rocks via homepage link with a matching handle | — |
| Official website | ctjs.rocks | www.jpct.net |
| Site preview | ||
Rank = neutral rotation by listing ID, not a quality score · how it works
Only platforms with an official store or installer link are listed; others may exist.
ct.js is Free; jPCT is Free. Both are listed in Games on ToolDock.
ct.js is listed as free; jPCT is listed as free. Pricing label set at listing time; official pricing page linked where verified — see each official website for current details.
Both are Games listed on ToolDock.
ToolDock keeps a tag-matched alternatives list for each: see ct.js alternatives and jPCT alternatives.