Not FOSS, but ad free and its been able to find the hidden RSS feeds for things OK. FeedDemon at: http://bradsoft.com/

Probably not what you are after, but maybe someone with a similar question.

Favorite so far was probably Talos Principle 2. It was excellent, best movie of the year. And the puzzles were fun too.

Somebody dropped a fair bit of cash and got Balders Gate 3 running for everyone. It’s been big enough to fill a lot of time, but probably wont solve the problem when we’re not all on vacation.

Factorio is a dangerous, but very fun, suggestion =)

Didn’t realize it could do more than 2! That’s wonderful!

As is the open variant: Minetest (Mineclone mod if you want vanilla)!

I didn’t realize Lovers in a Dangerous Spacetime did more than 2! That’s great!

Both actually! Two different groups of 3. Offline bunch has ended up doing baba is you for the last year or so (not coop, but puzzles are pretty easy to backseat game).