Side-by-side comparison of two listed Games — real listing data only, no paid placement.
On record, they differ in: unique tags (ct.js 1: #javascript vs Ebitengine 1: #go); category rank (ct.js #23 vs Ebitengine #25). 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
Dead simple open-source 2D game engine for Go
Ebitengine is an open-source 2D game engine for the Go programming language, formerly known as Ebiten. Its simple API lets developers quickly build 2D games that deploy across multiple platforms.
Published 2026-08-13 · Links checked 2026-09-06
| ct.js | Ebitengine | |
|---|---|---|
| Pricing | Free | Free |
| Category | Games | Games |
| Rank in Games | Position #23 of 74 | Position #25 of 74 |
| Alternatives listed | 12 → | 12 → |
| Shared tags | #game-engine #2d #open-source | |
| Unique tags | #javascript | #go |
| 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) |
| In their own words | — | Ebitengine is an open source game engine for the Go programming language. Ebitengine's simple API allows you to quickly and easily develop 2D games that can be…— official site (homepage description), checked |
| Official channels | X (Twitter)declared on ctjs.rocks via homepage link with a matching handle | Redditdeclared on ebitengine.org via homepage link with a matching handle |
| Official website | ctjs.rocks | ebitengine.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; Ebitengine is Free. Both are listed in Games on ToolDock.
What they have in common: #game-engine · #2d · #open-source
ct.js is listed as free; Ebitengine 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, 2d, open-source.
ToolDock keeps a tag-matched alternatives list for each: see ct.js alternatives and Ebitengine alternatives.