Specifiction
For vendors
AdvertiseTop spots, featured rows, home sponsor Get listedAdd a product we don't cover yet Claim a listingFree: verify the domain, then correct your page Vendor dashboardNumbers, orders and placements
List your tool
Vendor dashboard
Tech riderRev. 2 Oct 2026

J.A.C.K.

Ch 116.6of 27 Game Level Editors
  1. 1Runs onLinux, Mac, Windows
  2. 2CostsNot stated by the maker
1 lines stated Written from the maker's own pages: jack.hlfx.ru
Visit site Alternatives
The J.A.C.K. homepage

Overview

J.A.C.K. is ranked #11 of 27 in game level editors on Specifiction. It runs on Linux, macOS, Windows.

J.A.C.K. plans and pricing

All plans
Steam version $14.99 once Purchase on Steam · access to beta updates jack.hlfx.ru · 2 Oct 2026

Compared on game level editors

Free plan
Yesjack.hlfx.ru

Facts

Purpose
J.A.C.K. is a level editor for games using Quake-style BSP architecture.jack.hlfx.ru · 2 Oct 2026
Intended users
The editor aims to serve people designing levels for classic games and mods, including Quake and Half-Life.jack.hlfx.ru · 2 Oct 2026
Supported games
The editor supports Quake, Half-Life, Quake II, Quake III, and Hexen II.jack.hlfx.ru · 2 Oct 2026
Map formats
It can import and export VMF maps, though VMF support is beta and does not include Displacements.jack.hlfx.ru · 2 Oct 2026
Extensibility
Plugins can add capabilities such as brush primitives, texture and model formats, and game configurations with import and export formats.jack.hlfx.ru · 2 Oct 2026
Editing tools
Features include curved surfaces, triangulation, UV-Lock, multiple VisGroups, and automatic selection in 3D views.jack.hlfx.ru · 2 Oct 2026
Map size
The editor supports levels up to 262144 × 262144 units.jack.hlfx.ru · 2 Oct 2026
Autosave
Users can configure autosave to protect projects from editor crashes or design errors.jack.hlfx.ru · 2 Oct 2026
Distribution
J.A.C.K. is donationware distributed freely, and the donation amount is up to the user.jack.hlfx.ru · 2 Oct 2026
Support
Users can submit error reports and feature requests through the project forums; the software is provided without warranty.jack.hlfx.ru · 2 Oct 2026
Downloads
The official download page lists Windows and 32-bit and 64-bit Linux packages.jack.hlfx.ru · 2 Oct 2026
Development
The maker says J.A.C.K. has been in development since August 2013.jack.hlfx.ru · 2 Oct 2026

Best J.A.C.K. alternatives

See all 20
All accessCh 01 GridCraft Free planAPILinux from $3.99/mo7.5 All accessCh 02 Remere's Map Editor Free planLinuxMac Free to start7.4 All accessCh 03 LDtk Free planLinuxMac Free to start7.2 All accessCh 04 Sprite Fusion Free planLinuxMac Free to start7.2 All accessCh 05 SonLVL LinuxMac 7.1 All accessCh 06 Tiled Free planLinuxMac Free to start7.1

Where it ranks on Specifiction

Is J.A.C.K. yours?

Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.

Claim it free Promote J.A.C.K.

Sources