Too many.
Actual answer: 144. Thank's humble monthly.
I've probably never played somewhere around a third of them. Humble monthly is nice for the one or two big games you wanted anyways each month, but then it also completely fills your steam library.
Gaming Discussions
HOW MANY GAMES DO YOU OWN ON STEAM
Submitted by ForcerHack, 28-01-2019, 07:53 AM, Thread ID: 119061
Thread Closed
RE: HOW MANY GAMES DO YOU OWN ON STEAM 20-01-2020, 09:17 PM #268
20-01-2020, 09:17 PM
#268