The OWASP ZAP core project
A C2 post-exploitation framework
Sokoban with many families of puzzles provided.
Ubuntu Mate Hacking Distro
Multi-core image resizer and rotator. Go crunch 'em!
Klotsky class block slider puzzles.
Full-featured C2 framework which silently persists on webserver
Toolkit aimed to perform lateral movement in restricted environments
(Android Forensics & Malware Analysis Included)