1.MonoGame / MonoGameOne framework for creating powerful cross-platform games.xnamonogamegame-frameworkgamedevcsharpcross-platform+7 moreC#Other license15K total3.1K forks+856 starsfrom 13,746 · score 6.75
2.friflo / Friflo.Engine.ECSHigh-performance C# ECScsharpecsecs-frameworkentity-component-systemgodotmonogame+12 moreC#MIT804 total72 forks+184 starsfrom 620 · score 5.22
3.FNA-XNA / FNAFNA - Accuracy-focused XNA4 reimplementation for open platformsxnafnacsharpgamedevwindowsmacos+2 moreC#No license3.1K total337 forks+105 starsfrom 2,961 · score 4.66
4.ppy / osu-frameworkA game framework written with osu! in mind.game-frameworksgame-engineosuhacktoberfestC#MIT2K total511 forks+105 starsfrom 1,926 · score 4.66
5.sschmid / EntitasEntitas is a super fast Entity Component System (ECS) Framework specifically made for C# and Unityc-sharpunityecstddperformancedesign-pattern+10 moreC#MIT7.7K total1.1K forks+89 starsfrom 7,591 · score 4.50
6.FosterFramework / FosterA small C# game framework2dcross-platformcsharpdotnetgame-developmentgame-engine+3 moreC#MIT889 total71 forks+76 starsfrom 813 · score 4.34
7.prime31 / NezNez is a free 2D focused framework that works with MonoGame and FNAmonogamefnanezfarseerphysicsC#MIT2.1K total374 forks+67 starsfrom 2,023 · score 4.22