The classic Orc Attack was originally developed by Dean Lock for the Atari 8-bit family of home computers and published by Thorn EMI in 1983.
You play a guy defending a castle rampart from attacking orcs that are trying to climb up using ladders. The orcs plant the base of the ladder on the ground then bring in sections to raise it up, taking just three connected sections to reach the top. You must run and grab rocks, placed at either side of the battlement, to throw down at the attackers. If the attackers reach the top of the rampart the stones temporarily turn into swords, which you must grab to hack down the invaders that are threatening your castle. When a round is complete you can throw burning oil onto them to torch the remainder.
The King of Grabs 