Side-by-side comparison of two listed Games — real listing data only, no paid placement.
On record, they differ in: unique tags (ct.js 2: #2d #javascript vs Orx 2: #cpp #data-driven); category rank (ct.js #23 vs Orx not in top 50). 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
Open-source data-driven 2.5D game development engine for C/C++
Orx is an open-source, data-driven 2.5D game development engine for C and C++ programmers, from beginners to experts. Its templated configuration system can create objects or entire scenes in a single line of code, with data changes applied without recompiling and 3D-accelerated rendering.
Published 2026-08-13 · Links checked 2026-09-07
| ct.js | Orx | |
|---|---|---|
| Pricing | Free | Free |
| Category | Games | Games |
| Rank in Games | Position #23 of 74 | not in top 50 of 74 |
| Alternatives listed | 12 → | 12 → |
| Shared tags | #game-engine #open-source | |
| Unique tags | #2d #javascript | #cpp #data-driven |
| Platforms | Windows | Not detected on official site (checked 2026-09-20) |
| Source code | github.com/ct-js/ct-js | github.com/orx/orx |
| 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 | orx-project.org |
| 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; Orx is Free. Both are listed in Games on ToolDock.
What they have in common: #game-engine · #open-source
ct.js is listed as free; Orx 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, and they share the tags game-engine, open-source.
ToolDock keeps a tag-matched alternatives list for each: see ct.js alternatives and Orx alternatives.