Top 5 replays open source projects

Manage Age of Empires 2 Definitive Replays

The COMPLETE (!) source code of the Sc2gears universe (Sc2gears app + Sc2gears Database + web-based parsing engine - bundled in an Eclipse project).

Extracts gameplay information from Starcraft II replay files

Butterfly Dota Replay parser

A collection of Go (golang) packages to record and play back League of Legends games from the spectator endpoint.