Side-by-side comparison of two listed Games — real listing data only, no paid placement.
On record, they differ in: pricing (ct.js Free vs Leadwerks Paid); unique tags (ct.js 3: #2d #javascript #open-source vs Leadwerks 2: #vr #3d); category rank (ct.js #23 vs Leadwerks #44). Same 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
Game engine geared toward VR projects and beginners
Leadwerks Game Engine 5 is a game engine positioned for VR and beginner-friendly development. The site offers an editor, engine and programming documentation, community forums, and games published on Steam.
Published 2026-08-13 · Links checked 2026-09-06
| ct.js | Leadwerks | |
|---|---|---|
| Pricing | Free | Paid |
| Category | Games | Games |
| Rank in Games | Position #23 of 74 | Position #44 of 74 |
| Alternatives listed | 12 → | 12 → |
| Shared tags | #game-engine | |
| Unique tags | #2d #javascript #open-source | #vr #3d |
| 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 | X (Twitter)GitHubFacebookBlueskydeclared on www.leadwerks.com via homepage link with a matching handle |
| Official website | ctjs.rocks | www.leadwerks.com |
| 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; Leadwerks is Paid. Both are listed in Games on ToolDock.
What they have in common: #game-engine
ct.js is listed as free; Leadwerks is listed as paid — no free tier on record. 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 tag game-engine.
ToolDock keeps a tag-matched alternatives list for each: see ct.js alternatives and Leadwerks alternatives.