I added private games for up to four players to Fillup, my take on Chain Reaction

I shared Fillup here in August, when I was asking about the 4x4 duel. It's my browser game based on the classic Chain Reaction rules, and I've since added private online tables for 2-4 players.

If you haven't played Chain Reaction, you place pieces in empty cells or cells you own. Corners fill at two pieces, edges at three, and the middle cells at four. A full cell sends pieces into its neighbors and captures them, which can set off more reactions. The last color on the board wins.

Local games already supported more than two players. Now you can do that online with friends too: share an invitation link, wait for people to join, and start the table when at least two players are there.

I've also added levels and rewards outside private games, more cosmetic packs, and reworked the visuals. The packs only change how your pieces look; they don't give you an advantage on the board. I wanted to share the updated version for anyone here who enjoys this kind of game.

It's free to play here: https://fillup.fun