C-Dogs SDL is a free and open source classic overhead run-and-gun game for Windows, Linux and MacOS. It is a Simple DirectMedia Layer port of the old popular C-Dogs game. It is released under GNU General Public License v2.0 and game assets under CC0/CC-BY/CC-BY-SA . It comes with 4-player multiplayer, co-op AI and and death match modes. It support moddability to add game features and new campaigns, maps and more. Some important features are customize the player option, many weapons to attack and blast and more than 100 user-created campaigns.