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OpenSourceAlternatives

Tag

csharp

4 catalogue entries use this topic; each Project's license policy is labeled separately.

Bitwarden

BitwardenOpen

Password manager you can self-host or run in the cloud

Stars20.2K
Commitjust now
LicenseAGPL-3.0

Bitwarden is a password manager with browser, desktop, mobile, and command-line clients backed by a vault you can run on your own server or leave hosted at bitwarden.com.

Alternative toLastPass1Password
MonoGame

MonoGame

Free C# framework for cross-platform 2D and 3D games

Stars14.5K
Commitjust now
LicenseMS-PL

MonoGame is a free, open-source .NET framework for building desktop, console, and mobile games in C#, re-implementing the discontinued Microsoft XNA API as code-first building blocks with no scene editor.

Alternative toUnity
sbox

sboxOpen

Modern game engine on Valve Source 2 with C# and live hotload

Stars6,489
Commitjust now
LicenseMIT

s&box is a modern game engine built on Valve's Source 2 and .NET that creates games in C# with millisecond hotload and a Unity-like scene system.

Alternative toGodot Engine
Unity

Unity

Commercial game engine with the widest platform reach

CompanyUnity Technologies
Since2005
PricingFreemium

Unity's advantage is distribution. Console certification, mobile export, XR headsets, and the middleware ecosystem around them are all solved problems, which is why studios keep choosing it even after several rounds of unpopular licensing changes.