Arcweave

Pixel Vision 8 is a platform that standardizes 8-bit fantasy console limitations built on top of an open source C# SDK. Developers can customize these restrictions to match actual legacy hardware or create something new. It is ideal for game jams, prototyping ideas or having fun.

Allegro 4 and Allegro 5 are cross-platform, libraries mainly aimed at video game and multimedia programming. They handle common, low-level tasks such as creating windows, accepting user input, loading data, drawing images, playing sounds, etc.

Lance is a real-time multiplayer game server, it provides an extendible Node.JS based server, on which game logic runs, as well as a client-side library which synchronizes the client's game state with the server game state.

Microsoft MakeCode brings computer science to life for all students with fun projects, immediate results, and both block and text editors for learners at different levels. It's a free, open source platform for creating engaging computer science learning experiences that...

Azgaar's Fantasy Map Generator (FMG) is a free online tool which produces procedurally generated and highly customizable fantasy maps. You can just use auto-generated maps or create your own world from scratch.

Snap! is a broadly inviting programming language for kids and adults that's also a platform for serious study of computer science.

Bitsy is a little editor for little games or worlds. The goal is to make it easy to make games where you can walk around and talk to people and be somewhere.

OpenGameArt.Org is an online asset repository of freely licensed graphics, models, sounds, & music for use in free & commercial games & other media.