I felt like writing a game so I wrote a "Critical Mass/Chain Reaction" type game. I know it's not new but it was fun to write.
Play against a friend, or against the computer (with 3 difficulty levels). Use up/down/left/right to pick a cell, then enter to drop a "pellet". If there are too many pellets (more than 1 in the corners, 2 on the edges, or 3 internally), the cell "explodes" and spreads to the neighboring cells. Check it out at https://github.com/dplassgit/games/tree/trunk/t100/crit There's a version for the Tandy 100/102/200/M-10 and one for the NEC varieties. The Tandy version adapts for the 200 screen, using more screen real estate. Feel free to adapt/adopt/extend and/or file bugs.
