Summer Numbers is a challenging and fun puzzle game to relax after a busy day. The rules of the games are simple: at the beginning of each level a random board is generated with both positive (green) and negative (red) numbers. The goal is to obtain more points than your opponent. The twist is that you can only move horizontally while your opponent can only move vertically, so always picking the highest possible number is not a winning strategy. The game ends when there is no possible legal move. This happens either when there is no number left on the board, but also when either player is on an empty row (player 1) or column (player 2).
You can play against the AI (which will get harder at every level) or with a friend (locally, on the same computer). After winning each level a beautiful hand-drawn watercolor/marker illustration is shown. The game is realized in a retro style reminiscent of the '90s era.