Battleship

Battleship started as a pencil-and-paper game played by soldiers in the First World War era and became a household classic as a plastic board game and later an early electronic game. This version puts you in command of a five-ship fleet on a 10×10 ocean: the Carrier (5 cells), Battleship (4), Cruiser (3), Submarine (3) and Destroyer (2) — seventeen cells of shipping to hide, and seventeen enemy cells to find on the mirrored enemy board.

Placement is a real decision, not a formality. You position each ship yourself, horizontally or vertically, spread them out or cluster them, hug the edges or own the middle — or hit Auto-place and accept a random legal layout. Once the battle starts, every shot is a deduction problem: a miss rules out water, a hit demands follow-up shots along the ship's line, and sinking a ship clears a whole region of suspicion from the board.

The computer plays the same game back at you with a memory. It hunts randomly until it scores a hit, then queues up the neighbouring cells and works around the wound until the ship sinks. That makes the second half of every match tense: once the computer smells a ship it is methodical, so the race is genuinely about who reads the board better. There is no score beyond the result and the running sunk-ship tallies — sinking all five enemy ships before yours go down is the whole prize.