Top STEAM GitHub Repositories & Tools (2026)

A native C++ port of Gran Turismo 2 for Steam Deck, MacOS, Windows PC, PCVR and Quest 3 Standalone VR

A mod to make and play Terraria mods. Supports Terraria 1.4 (and earlier) installations

C# application with primary purpose of farming Steam cards from multiple accounts simultaneously.

Source 2 Viewer is an all-in-one tool to browse VPK archives, view, extract, and decompile Source 2 assets, including maps, models, materials, textures, sounds, and more.

An open-source framework for Steam Client themes and plugins

Smoother game streaming on Mac. Automatic AWDL boost for Moonlight, GeForce NOW, Punktfunk, Parsec & Steam Link. Native SwiftUI + Liquid Glass. MIT.

An ASF plugin for finding and redeeming free Steam games

[Experimental] Run multiple gaming sessions on a single GPU

Python replay parser for Dota 2

SteamInputDB makes it easier and more convenient to browse, filter, share, and apply community-shared SteamInput controller layouts/configurations. -- The SteamInputDB-Buddy App provides direct integration into the Steam client

Open Blocks is the open source, community led evolution of Google Blocks!

Your Windows gaming PC, with the soul of a gaming console.

Multi-screen KDE Plasma desktop and universal 3D mouse for the Valve Steam Frame (SteamVR)

🐕 Ultimate trainer & mod collection for WARDOGS. God Mode, Infinite Ammo, Unlimited Money, Stealth Mode, Perfect Accuracy, and more. Memory-only, no file modifications. Single-player practice only. NOT for online multiplayer. Steam 2026.

Turn your Windows PC into a couch console. A free, controller-friendly front end in three shells — a channel grid, a blade dashboard and a media bar — with an optional, carefully guarded shell mode. Very early beta.

Tender — your RomM library, running native in Steam. Decky Loader plugin for the Steam Deck: library sync, ROM downloads, BIOS management and save sync.

Graveyard Keeper 2 trainer for PC — infinite energy and resources, instant crafting, perfect corpse quality, unlimited tech points, tireless zombie workers, invincible undead army. Plus a borderless window fix. 55+ options across 8 sections. Steam, Epic and GOG.

Dressmaker Trainer for PC — infinite money and fabric, no cutting waste, forgiving sewing line, unlock every pattern, trim and dye, freeze the commission timer. 45+ options with precision assists separated from cheats. Steam, single-player, offline.