Museum Metadata Games is described as 'Help museums and libraries by tagging images' and is an website in the File Management category. There are three alternatives to Museum Metadata Games, not only websites but also apps for Android. The best alternative is Crowdsource, which is free. Other great sites and apps similar to Museum Metadata Games are ARTigo (Free) and MetaData Games (Free).
ARTigo is an online game with the aim to supply artworks with tags. The same artwork is simultaneously shown to you and a co-player. The game now consists in describing the artwork accurately with tags.
Metadata Games is a digital gaming platform for gathering data on photo, audio, and moving image artifacts. The platform entices players to visit archives and explore humanities content while contributing to vital records.