Popular games for platform Sinclair ZX81

Croaka-Crawla is a clone of the arcade game Frogger where the player must control a frog and get him to the other side of a road and river. The game is viewed from above and the first thing to cross is a busy road full of traffic scrolling across the screen. You can move left, right or forward as you dodge the traffic to reach a river bank. Once the road has been survived then a river must be crossed by jumping on logs or the backs of turtles that scroll across the screen as well. Once you reach the other side of the river you must jump into a gap and occasionally a baby frog or flies appears for extra points. If you get hit by a vehicle, fall into the river, or touch the sides of the screen then you lose one of three lives. Before the game you can change the speed of the game (1-100) with 1 being the fastest.

ZX Chess II is an improved version of ZX Chess I, a single-player chess game. In addition to the features of the previous version (custom board setup, printing etc.), the code enhancements include additional difficulty level, faster move calculation and an option for the player to ask the program to suggest a move.

Mazogs is a maze video game developed by Don Priestley and published for the ZX81 by Bug-Byte in 1982. It was subsequently licensed by Softsync and published in the US for the Timex Sinclair 1000.

A Pac-Man clone without the power ups.

The game is cleared when all the stars are taken. The cracked floor disappears when you pass over it, so you can only pass through it once.

Casca a Cobra is a strategy game where you need to chase a snake and eat its body up to the head.

Place the arrow, change the direction of the car, and pass all the flags to clear the game. If the car goes off-screen or hits a rock, it is a failure. If the car hits a wall, it will flip, but the wall will disappear.

Chess game developed for home computer Sinclair ZX81. Game code takes up only 672 bytes in memory, but implements all chess rules except for castling, promotion, and en passant, including a computer opponent. It was the smallest implementation of chess on any computer at the time.

A maze game made by Jeff Minter from Llamasoft. The maze was a cube, and you could go through holes in the floor and ceiling as well as left and right

Never did like office parties... Christmas eve, and the staff at Macrobiology Industries Limited were having the usual office party, with all the usual hi-jinx and tears, but something very unusual was happening in the biohazard containment fridge. The predicted pandemic had never occurred, and so the fridge was full of unused swine-flu vaccines, but that night it jostled for space with the secretary's cucumber sandwiches and the boss's - sorry, not his, a friends - Viagra supply, all stored there for safe keeping until the party really got started. But the disco lights overloaded the generator, the fuses blew, the fridge shut off, and the staff all went their separate ways home to sleep off the excesses. January 2nd, happy new year! The security guard, first on site that morning, was slowly working his way around the offices and labs, tripping the fuse boxes back to life. He shook his head, bemused by the broken hinges on the doors, but the smashed containment fridge, and mucus-like stains on the walls and floor scared him enough to grab his SHARPS pistol, as strange things moved just out of sight...

ZX Asteroids is based on the arcade game where you are a craft sitting in the middle of the screen surrounded by large asteroids moving about the screen. You have to blast all the asteroids, and when one is shot then it splits into smaller asteroids and keeps repeating the process until the asteroid has gone. You can turn your craft left or right 360 degrees but you can also move forwards. Occasionally an alien craft will appear and when shot gives you bonus points. If you are hit by an asteroid or the alien craft then you lose one of three lives. Two players can play and each player takes it in turns when the other player loses a life and there are five levels of play (1-5) with one being the easiest.

An obscure compilation consisiting of six games for the ZX81.

A text adventure game where the player controls a spy shot down while investigating an enemy stronghold.

You have to take the keys and go to the exit, avoiding enemies.

Chase is somehow similar to Gnome Robots but in real-time game and with several items and power-ups.

Comboio Espacial is a game for the Sinclair ZX81, where you must protect your convoy by destroying enemy ships and avoiding hitting the space mines.

Artic Computing's take on Reversi

"Sam Mallard: The Case of the Missing Swan" is a short film noir adventure on the go with 15 different locations to explore and a fantastic 8-bit Jazz noir sound-track.

Subespaço is a bundle that includes three space-related games developed by Ciberne Software