

Jawbreaker is a video game programmed by John Harris and released in 1981 for the Atari 400/800 by On-line Systems. Originally intended to be a fairly straight Pac-Man clone, Jawbreaker emerged as a relatively inventive version with unique gameplay. It was widely lauded by reviewers, and became a major seller for Sierra Online. The story of its creation forms a portion of Steven Levy's book, Hackers.

Platform / Arcade / Action / Science fiction
Lock 'n' Chase is a 1981 maze arcade game developed and published by Data East in Japan in 1981, and later published in North America by Taito. Lock 'n' Chase was Data East's response to Pac-Man. The game's main character is a thief. The object of the game is to enter a maze and collect all the coins and, if possible, any other treasure that may appear. The thief must then exit the maze (a vault) without being apprehended by the Super D (policemen). The thief can close doorways within the maze in order to temporarily trap the Super D and allow him to keep his distance from them. Only two doors can be closed at a time. The Super D policemen are named Stiffy, Scaredy, Smarty, and Silly.

A copy of Pac-Man, but with various improvements. This game is primarily known for the Atari lawsuit against it which set an important precedent for copyright and lawsuits in videogames.

Second Part of Mad Mix Game 2, a pac man style game

Players drive a car around a maze collecting greenbacks while being pursued by a number of police cars. Use dollar symbols to make your car invincible and put police cars temporarily out of action. The game uses a continuous loop tape with actual police band radio banter.

Clean Sweep is an arcade puzzle game. Move a vacuum through a maze in order to suck up dollar bills that are strewn throughout the screen. After several bills are vacuumed up, the vacuum will increase in size. After several size increases, the vacuum will become full and will not be able to vacuum up any more bills, so the money must be deposited in the vault in the center of the screen before the vacuum can start gathering up money again. The difficulty level increases by having the vacuum fill up quicker, causing the player to make multiple trips to the vault during a level.

This maze game is quite similar to "Pac-Man". The player controls a caterpillar that crawls along the branches of a maze-like tree eating nuts and strawberries while avoiding deadly bugs and a hungry bird. The caterpillar changes into a butterfly after everything has been eaten.

The definitive home version of the arcade classic! Gobble your way through the maze of Pac-Land, chomping on dots and avoiding the four hungry monsters, Blinky, Pinky, Inky and Clyde. But if you can manage to eat an energizer, turn the tables on those monsters by feasting on them for bonus points! Dennis Debro sought to create an adaptation of Pac-Man more faithful than Atari's 1982 version for the VCS. Utilizing the same 4K memory limit as the original, Dennis' game is a feat of programming that finally brings Pac-Man to the Atari 2600 as it was intended.

In Serpentine you control a multi-segmented snake in a maze; your goal is to survive and earn as many points as possible. At the beginning of each level, three enemy snakes will also enter the maze. To complete the level, you need to eat all of the enemy snakes. If an enemy snake has more segments than your snake, you can only eat segments that form the tail of the snake; a collision with the head is lethal! Each time you eat a segment, the enemy snake will become smaller until eventually you can devour it completely. For enemy snakes that have fewer segments than you, you can eat the tail segments or the head segment. From time to time, a frog will appear in the maze; eating this will cause your snake to grow. Both your snake and enemy snakes will leave eggs behind occasionally; left alone, these will hatch (your eggs earn you an extra life, enemy eggs will hatch another snake). Eggs can also be eaten to remove them from the playfield, so it's usually a good idea to eat enemy eggs before a new snake hatches! The maze changes for each level, and the enemy snakes progressively become larger and tougher to catch.