Tic-tac-toe
Three in a row on a 3×3 grid. Play it here against a bot.
2 players · 3×3 board PlayGames
Othello
Flank your opponent's discs to flip them. Most discs on a full board wins.
2 players · 8×8 board
Battleship
Place your fleet in secret, then take turns calling shots until one fleet sinks.
2 players · 10×10 grid