How to Play: Goal: have more discs of your color on the board when the game ends. Players take turns placing one disc. A move is only allowed where it sandwiches at least one opponent disc in a straight or diagonal line between the new disc and one of yours — all sandwiched discs flip to your color. Dots show legal moves. If you have no legal move, your turn passes; the game ends when nobody can move. Tip: corners can never be flipped back, so grab them. Controls: click or tap a cell to place a disc (mouse, touch). Hover or hold to preview what will flip (training mode). Esc opens the game menu.

Reversi (Othello) in beautiful 3D — the classic strategy game where one move can turn the whole board. Sandwich your opponent's discs between yours to flip them, and finish with the most discs to win. Play 5 computer levels from Novice to Master, ranked online matches with Elo rating, games with a friend by room code or on one screen, and a daily puzzle with the same position for everyone. Unlock dozens of discs and boards — marble, gold, gemstones, animated legendary discs and themed tables — and progress through a 40-tier season pass with daily and weekly quests. A friendly 2-minute interactive tutorial takes you from zero to your first win.