Okay, challenge created, and it’s a doozy, and unlikely to be completed.
10 x Gloomhaven: Jaws of the Lion
10 x Spirit Island
10 x Marvel Champions
10 x Unmatched
5 x Arkham Horror the card game
5 x Tyrants of the Underdark
5 x High Society
5 x Night of the Ninja
5 x Hansa Teutonica
5 x Star Wars: Imperial Assault
5 x Lost Ruins of Arnak
5 x The Search for Planet X
1 x Unfathomable
1 x Troyes
1 x Kemet
1 x Inis
1 x Five Tribes
1 x Dungeon Petz
1 x Lowlands
1 x Downforce
1 x Raccoon Tycoon
1 x Star Wars: Outer Rim
1 x Exit: the Secret Lab
1 x Star Wars: Unlock
1 x World Monuments
1 x Tigris and Euphrates
1 x Princes of Florence
1 x Lawyer Up
1 x A War of Whispers
1 x Race for the Galaxy
1 x Mr. Jack
1 x Lost Cities
For a grand total of 100 plays. Most of the higher count games are going to be solo plays, but most everything else requires other people, or I feel will be more enjoyable with others. Many of the x1’s would be first time plays, in an effort to reduce my shelf of shame/opportunity, though there will still be more even if all of these do get played, so even though they are not part of the challenge, I hope to get more of them played as well.