ActionGame

C-Dogs SDL

Classic overhead run-and-gun game

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Chocolate Doom

Conservative source port

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Crispy Doom

Limit-removing enhanced-resolution Doom source port

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Doomsday Engine

Enhanced source port of Doom, Heretic, and Hexen

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Lugaru HD

Third person ninja rabbit fighting game

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OpenClonk

Multiplayer action game where you control small and nimble humanoids

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OpenLieroX

Sidescrolling shooter where you control worms armed with a range of weapons

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Quakespasm

Quakespasm Quake Engine

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Red Eclipse

First-person shooter with agile gameplay and built-in editor

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SDL-Ball

Brick-breaking game with pretty graphics

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SuperTux

A jump-and-run game starring Tux the Penguin

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Xonotic

Multiplayer, deathmatch oriented first person shooter

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vkQuake

A port of the Quakespasm Quake engine to Vulkan

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