Hedgewars is a free and open-source turn-based strategy artillery game. Similar to Worms and WarMUX. Players control a team of hedgehogs across a deformable landscape, battling other computer- or player-controlled teams. Hedgewars is available on different platforms including Linux, Windows and Mac OS X. It was also ported for Android and iOS. Which is released under the GNU General Public License v2
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Pros
Pro Stable
Bugs isn't something to worry here. You can either go singleplayer or multiplayer with LAN or go Online with your friends locally nor from afar.
Pro Big variety of weapons
The choice of weapons very wide: from bazooka to homing ballistic weapons to the Superweapons. You can try the ropes to fly over the entire map.
Pro It's a free Worms clone
Just like Worms, but it's free. The game is open source, so you can contribute and make your own styles, schemes, map, even your own game modes and share with an active and friendly community.