> how to modify boardgames to play with friends via webcam
It's easy to adapt roll-and-write games (the genre that Yahtzee belongs to). One player rolls the dice and puts them in front of their webcam, the rest mark their answers on private boards. You can each buy the game, or print off copies of the board, or draw them by hand, or take a picture and write on it in a photo editor.
We've been playing a lot of Railroad Ink, which has a particularly easy board to draw by hand.
We tried Boggle, it was painful because we had a group at each webcam and one of the people had a really poor connection. The checking of words for uniqueness at the end of the round took forever. Still fun, but I wouldn't play again unless it was one webcam per person. YMMV.
With a clear tabletop, and a very carefully placed camera(s) under the table, my group found a bunch of card games to play, with very little change need. Took multiple video streams/apps/devices to work.
It's easy to adapt roll-and-write games (the genre that Yahtzee belongs to). One player rolls the dice and puts them in front of their webcam, the rest mark their answers on private boards. You can each buy the game, or print off copies of the board, or draw them by hand, or take a picture and write on it in a photo editor.
We've been playing a lot of Railroad Ink, which has a particularly easy board to draw by hand.