MASGAU is described as 'Automatic Save Game Archive Utility - A backup utility that automatically detects and archives saved games and can then restore them' and is a Online Backup tool in the backup & sync category. There are three alternatives to MASGAU for Windows and Linux. The best MASGAU alternative is Game Backup Monitor, which is both free and Open Source. Other great apps like MASGAU are The Game Saver and SLSK (Steam Linux Swiss Knife).
Game Backup Monitor is a simple, but flexible application that detects games as you play them. Once you finish playing a game, a backup of the saved games will be made automatically using 7-Zip compression.
Small portable Windows tool called Game Saver that lets you back up any game’s save folder to a USB drive and restore it later on any PC.
A manager that can backup/restore game saves, game configs and entire games. It relies on a community-maintained database containing information on the save and config paths of various Linux Steam games.
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