
J.A.C.K.
Brand new level editor for games with a Quake-style BSP architecture; a convenient cross-platform tool capable of incorporating the best features of existing editors, such as Valve Hammer Editor, Q3Radiant, and others. J.A.C.K. does aspire to be the universal level design tool for classic games.
Offers
What are keyshops?Official stores
Official stores with direct support.
About J.A.C.K.

What is J.A.C.K.?
J.A.C.K. (Just Another Creation Kit; previously known as Jackhammer) is a brand new level editor for games with a Quake-style BSP architecture. The aim is to develop a convenient cross-platform tool capable of incorporating the best features of existing editors, such as Valve Hammer Editor, Q3Radiant and others. Despite Quake and Half-Life having been released a long time ago, the large community have arisen around, still developing mods and games on their bases. However the existing editors suffer from fundamental disadvantages their users are well familiar with. J.A.C.K. does aspire to be the universal level design tool for classic games. But not only the classics! The editor evolves, there are plans to support Source Engine and Unity.Supported Games
- Half-Life (including mods and Gunman Chronicles)
- Quake (including mods and some Quake-based games, e.g. Hexen II)
- Quake II (including mods)
- Quake III (including mods and idTech3 based games, e.g. Tremulous)
Main Features
- Cross-Platform Editing: the editor is available both for Windows and Linux users.
- Large memory addressing support: 64-bit version of the editor overcomes the 2 Gb available memory limit.
- Large Map Support: you can create and edit levels with dimensions up to 262144 х 262144 units.
- Extensibility: the editor supports plugins to extend its abilities.
- Multiple Game Formats Support: preview models and sprites of different games, open different map formats, from MAP to VMF.
- Realtime Texture Effects: support of transparency, texture animation and scrolling, and Quake III shader scripts greatly enhance perception during the development stage.
- Embedded Shader Editor: now the process of creation of shaders for Quake III and idTech3 based games becomes delightful!
- Curved surfaces: the editor supports curved surfaces (patches) used in idTech3 based games.
- Dynamic Sky Rendition: the editor renders skyboxes in the same way games do.
- Color Schemes: the editor's look-and-feel can be easily customized.
- Autosave & SteamCloud: configure autosave and cloud save functions to protect your project from editor crashes and own design errors.
- Additional Instruments: brush merging, triangulation, UV-Lock, multiple visgroups, model rendition in 2D viewports, automatic selection in 3D, preservation of internal connections, and many more...
Game details
Game details
Languages
J.A.C.K. price history
Lowest tracked price: CA$11.38 (Jul 7, 2026) · current best: CA$16.99.
J.A.C.K. player count & reviews
94% positive reviews all-time · 26 peak players in the last 30 days.
J.A.C.K. — frequently asked questions
Where can I buy J.A.C.K. at the cheapest price?
Right now the cheapest offer for J.A.C.K. is CA$16.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price J.A.C.K. has ever been?
The lowest price KingsPrice has tracked for J.A.C.K. is CA$11.38 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play J.A.C.K.?
J.A.C.K. peaked at 26 concurrent players on Steam in the last 30 days (highest on Jul 14, 2026). The player chart on this page updates daily.
How can I get J.A.C.K. at a discount?
Create a free price alert on this page and KingsPrice will email you when J.A.C.K. drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- OS *: Windows 7 or newer
- Processor: CPU 1 GHz
- Memory: 1 GB RAM
- Graphics: 256 Mb video card
- Storage: 50 MB available space
Recommended
- OS *: Windows 7 or newer
- Processor: CPU 2 GHz
- Memory: 2 GB RAM
- Graphics: 1 Gb video card
- Storage: 50 MB available space











