Cataclysm: Dark Days Ahead.
By CleverRaven
Cataclysm: Dark Days Ahead is a free turn-based survival game in a persistent, procedurally generated world. Players scavenge food, equipment, and vehicles, and deal with monsters and other survivors. The project publishes tiles and terminal builds and documents Linux, macOS, Windows, and BSD. Code and content are CC BY-SA 3.0 except files that carry their own license notices.
The F7 Insight
The showcase is four different places in one ruleset: street, woods, farm, and a sealed interior. That range is why the tiles build is worth a look, and the project license covers the screenshot apart from named font and library exceptions.
A closer look.
- 01
Scavenge a generated world for food, equipment, and vehicles.
- 02
Face monsters and other survivors in turn-based play.
- 03
Start a tutorial from the Special menu or create a world from the World menu.
- 04
Build for Linux, OS X, Windows, and BSD, with distro packages and a Flathub listing.
- 05
Stable and experimental releases are linked from the official readme.
Sources & credits
Verified against the sources below. Features, pricing, and availability may change; check the creator’s current information before installing or buying.
- Official readme: survival play, platforms, releases, Flathub, and free reuse of code and contentChecked 14 Oct 2026
- CC BY-SA 3.0 for the project, with named exceptions for fonts and librariesChecked 14 Oct 2026
- CC BY-SA 3.0 legal text for the Cataclysm screenshot noticeChecked 14 Oct 2026
Artwork acknowledgments
Ultica tileset showcase from data/screenshots/ultica-showcase-sep-2021.png. LICENSE.txt places Cataclysm code and content under CC BY-SA 3.0 and names separate licenses for specific fonts and libraries. This screenshot is not one of those exceptions. Image used unmodified.