There is a new Steam tool that detects game engine among games in Steam
https://steamdb.info/tech/?beta=ohthehumanity
OpenFL(or lime) is at the high third among all engines used, which is… pretty cool! Higher than CryEngine and Defold, for example, and right behind Source.
N.B. Sorry if this is offtopic here 
Adobe Air is still a thing. I don’t know why they listed Adobe Air and Flash as separate technologies for building applications. 
Rules are here - https://github.com/SteamDatabase/FileDetectionRuleSets/blob/main/rules.ini
It seems there is a lot of old games that bundle standalone “flash_player.exe” just to show swc in window… Someone even didn`t bother to recompile for AIR
That’s pretty cool. I’m surprised Heaps isn’t higher though.