Rescue Rover file extensions

Rescue Rover is a computer puzzle game from id Software, published by Softdisk in 1991. The game was distributed as shareware.

Roger and Rover are the names of the two main characters. Rover the dog is frequently kidnapped by robots, and it is the player's (Roger the owner) job to enter into robot territory get him back, hence the name "Rescue Rover".

Each level starts with Roger climbing up a ladder set into the floor, and the player completes the level by arriving back at this ladder with Rover - at which point Roger climbs down with Rover.

There are four different types of robot in the game, each with different behaviour. One type shoots Roger if he stands in front of it, but doesn't move, another type runs around and shoots Roger if he is seen, another type chases Roger around, and the last type runs around and kills Roger if it runs into him. To get to Rover, the player must normally avoid, trap or destroy them.

There are various items which Roger can push around in the world: crates (which float on water), mirror blocks (which reflect lasers at an angle), star pearls and anti-grav carts. Other items in the areas are grated floors (which robots cannot travel on), glowing floors (which Roger cannot travel on), water (including moving water in which crates float with the current), laser projectors, teleporters and force doors (which need an access card in order to be opened).