Elimin8 and Drop7 are both the same game, just wearing different clothes. Start with either a 7×7 or 8×8 board (hence the name). Fill in a few squares with a number from 1 to 7 (or 8). Some with block that have to be busted against twice — once to show the number, again to be activated. If the number on the block matches the number of blocks in the column or the row, the block explodes and disappears (busting against nearby concealed blocks if present). Blocks fall down into any empty slots. Game is over when any column overflows.
Elimin8 has some powerups to provide a little more strategy. My preference, though is for the more unadulterated version of Drop7. Either way, it’s a one trick pony. Just fine for what it is, but not anything more. Gets stale after a short time but fun enough to pick up once in a while.
Survival score: 30-40 minute session, every few months