gibbed / SteamAchievementManager

A manager for game achievements in Steam.

JustArchiNET / ArchiSteamFarm

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

zevnda / steam-game-idler

Farm Steam trading cards, manage achievements, and idle games automatically — an all-in-one alternative to ArchiSteamFarm, Steam Achievement Manager, and Idle Master

Revadike / InternalSteamWebAPI

Documenting the unofficial and internal Steam Web API

SteamAchievementNotifier / SteamAchievementNotifier

Steam Achievement Notifier shows fully customisable notifications when you unlock any achievement on Steam!

Contrary7 / SteamDaddy-Backup

The ultimate SteamTools & GreenLuma alternative. Auto-unlock DLCs, fix connection & purchase errors, manage Steam manifests, and apply online fixes with Millennium plugin support. Backup Repo