The name says it all, it's a Quake Arena style game with explosive goats.
"Goat of Duty is a fast and intense multiplayer shooting FPS, and that's all you need to know about", says the game's producer on his Steam page." There's no need to play a story to evolve the character without complex combinations of skills, none of that, just goats finishing off each other in an arena, with powerful weapons and quick action. Oh, of course, lots of powerful non-sense weapons and bizarre clothes."
The game has not yet been released, but according to the producer, it will be soon.
Watch the gameplay: