Leo Christopherson

Ameline and the Ultimate Burger

Ameline and the Ultimate Burger

Windows - August 1, 2017

The king was cursed, and won't eat anything! Bring him the Ultimate Burger and revive his appetite... but beware, the power of the Ultimate Burger will make the whole kingdom drool, defend it with your needles! Ameline and the Ultimate Burger, although a cute and pleasant game, will put you and your friend's dexterity to the test! While being a family game for everyone, it will take precision, focus, and fast reactions to defend the Ultimate Burger. Featuring a 100 levels and a shop with lots of cute, cool, or useful stuff to buy for each characters.
Android Nim

Android Nim

Tandy TRS-80 - Released - November 1, 1978

Android Nim is a representation of the mathematical game Nim. Players take turns removing a desired quantity from a number of distinct heaps. The player to remove the last item wins, but a player can only remove items from a single heap per turn. In this version the heaps are represented by text-mode animated androids and removing items is done by selecting which lasers to fire. The player can only play against the computer. Don Dennis ported this to the Commodore PET in 1979. Christopherson himself also made a port for the Apple II in 1980.

Android Nim

Commodore PET - Released - July 1, 1979

Android Nim is a representation of the mathematical game Nim. Players take turns removing a desired quantity from a number of distinct heaps. The player to remove the last item wins, but a player can only remove items from a single heap per turn. In this version the heaps are represented by text-mode animated androids and removing items is done by selecting which lasers to fire. The player can only play against the computer. The original was on the TRS-80 in 1978 and created by Leo Christopherson

Android Nim

Apple II - Released - 1980

Android Nim is a representation of the mathematical game Nim. Players take turns removing a desired quantity from a number of distinct heaps. The player to remove the last item wins, but a player can only remove items from a single heap per turn. In this version the heaps are represented by text-mode animated androids and removing items is done by selecting which lasers to fire. The player can only play against the computer. The Apple II version was published by Scott Adams' Adventure International.
Beewary

Beewary

Tandy TRS-80 - Released - 1979

You play as a bee who can move in 4 cardinal directions. On the bottom of the screen is a spider, who will attempt to move underneath the bee and eat it. If the bee gets too close, the spider can eat it. The goal is to try to sting the spider before it can eat you. The game keeps track of how many times the spider or the bee has won.
Cubes

Cubes

Tandy TRS-80 - Released - 1978

Cubes is a puzzle game based on the physical puzzle game Instant Insanity. The player is given four cubes with sides in different colors. The goal is to stack them on top of each other in such a way that when looking from the four sides of the stacks there are also four different colors visible.
Dancing Demon

Dancing Demon

Tandy TRS-80 - Released - 1980

You have befriended this phenom, this former commissary attendant of limited IQ but limitless energy and talent. Your task is to compose music and choreograph dance routines for him. Then sit back, watch the curtain rise at the next gig (Belvedere Theater, Oskowatcha, Washington), and enjoy the show. This musical game translates two octaves of notes with sharps and flats to the computer keyboard, playing them as you compose. Rests are possible, but no half-notes or quarter-notes. For the dance routine, you can choose from eighteen different moves, varying in length and complexity from steps to spins, squats, and stomps. For inspiration, two routines are included, but you can save your own to create a vast repertoire for the demon. Each show raises the curtain on a hulking figure who dominates the stage, but adeptly -- indeed, enthusiastically -- matches every step you program, to the tune you composed.
Duel-N-Droids

Duel-N-Droids

Tandy TRS-80 - Released - 1980

Two androids face off in a sword battle, and only one can emerge victorious. Players control their droid by stepping to or from their opponent, and have the option to parry or thrust. There are a total of 7 progressively more difficult levels of opponents. They player can practice against a specific opponent, or can enter tournament mode where they must fight all 7 levels in succession at a more difficult level. The robot who is hit first loses.
In the Hall of the Mountain King

In the Hall of the Mountain King

Tandy TRS-80 - Released - 1982

In a sister game to Voyage of the Valkyrie, developer Leo B. Christopherson puts you back in the role of a buck private in the renowned Space Vikings. Norse folklore is again prominent, the plot borrowed from the Peer Gynt story. You must rescue the princess Anitra, held for ransom by the rogue Mountain Troll King, and as a parting gesture leave a bomb to destroy the entire Troldhjem Kingdom. The catch is that Anitra won't come with you unless you charm her with jewelry, so you'll need to find some along the way. Also, keep an eye out for the scattered pieces of the bomb; all seven are necessary. These are hidden in the Norwegian Circle Maze you'll have to navigate to find the Hall of the Mountain King. Given that it comprises forty-one circles, each intersecting up to six others, you'll probably see most of it a few times over before arriving at your destination. Mapping your route is important, because while the actual rescue just requires reaching the hall, escaping means finding your way out before that bomb goes off. As you might expect, there are also trolls in the Troll Kingdom: big ones with guns. Fortunately your little rail car which rides the tracks of the circle maze not only has a defense shield, but is quick enough to back out of any battle which gets a little too hot. Combat is a first-person view of the troll -- looking rather like Christopherson's Dancing Demon -- jumping back and forth and blasting at you, while you maneuver crosshairs to shoot him in the heart. This alternates with a status screen showing your address within the maze, rank, treasure and items collected, and body count. Bring back enough treasure and you could retire as the Prince Regent. As the title implies, Edvard Grieg's Peer Gynt Suite provides brief musical interludes. Five levels of difficulty and seven variations on the fixed maze scale the challenge, which is single-player only. A sealed map is included in the booklet for those who become understandably desperate, and there's also a cheat key to start you at the climax scene.
Klendathu

Klendathu

TRS-80 Color Computer

Based on Robert A. Heinlein's Hugo-award winning book, Starship Troopers, this game simulates the brief combat life in M.I. (Mobile Infantry) far in the future. The Terran Federation is locked in a deadly war with "the Bugs," and has announced "Operation Bughouse," an attack directly on the Bugs' home world of Klendathu. Equipped with a state-of-the-art power suit, you drop in from orbit and and torch as many Bug warriors as possible, then bounce back out before your suit runs out of energy or the Bugs overwhelm you. Survive three drops and you can retire, with pay based on how many Bugs of each rank you blasted. Game play consists of carefully selecting which block of the drop zone to land in, and then blasting the warrior and queen Bugs as they advance down the screen toward you. For each warrior and queen you might see, however, there are many more harmless worker Bugs, which look exactly like the warriors. They're all swarming toward you; choose your targets carefully and don't waste your ammo. You'll know the warriors because they're the ones shooting at you.
Life Two

Life Two

Tandy TRS-80 - Released - 1979

Life Two are games based upon John Conway's Game of Life Contains a TRS-80 implementation of the Game of Life. Any live cell with fewer than two live neighbours dies, as if caused by under-population. Any live cell with two or three live neighbours lives on to the next generation. Any live cell with more than three live neighbours dies, as if by overcrowding. Any dead cell with exactly three live neighbours becomes a live cell, as if by reproduction. Also contains a competitive form called The Battle of Life, where 2 - 4 players place 1 - 5 animated characters in a 10 x 5 board. Every 5 generations, the remaining players can place two more lifeforms. Gameplay continues until there is only a single player remaining.
Snake Eggs

Snake Eggs

Tandy TRS-80 - 1979

Snake Eggs is an animated 1-player gambling game for the TRS-80. The player and the computer take turns rolling a number from 1 to 22. The goal is to get as close to 41 without going over. At the beginning of each round, the player wagers a bet, and starts with $1000. A roll of "snake eggs" wins, and a roll of "scrambled eggs" automatically loses.
Voyage of the Valkyrie

Voyage of the Valkyrie

Tandy TRS-80 - Released - 1980

Reclaiming the ancient Ø for his Scandinavian ancestors, pioneering game programmer Leo Christopherson takes one or two players to FUGLØY ("Bird Island") to conquer ten castles in aerial combat. Your ship is the Valkyrie; your deadly opponents are bird air forces of FUGLØY, classed from the neophyte Hawks to the powerful and clever Eagles. The birds are not the only peril. The island itself is a maze of mountain passes and treacherous fog banks. It does not change from game to game, though, and the box includes a worksheet for mapping out the features and safe routes between the castles. Each Norwegian-named castle has a different class of defender in varying numbers -- data provided at the start of each game -- so the best strategy for conquering the island may not be linear. You can speed past a defended castle or engage briefly and escape to refuel. Beware the roving Eagle squadron, though; it takes only one hit with your shields down to end even a veteran pilot's career. Energy is the limiting factor. It is consumed by travel, shooting, and enemy hits. While your ship's stores can always be replenished at a friendly base, and your weapon energy by disengaging from combat, running out of either spells the end. The view is always first-person. In combat a moving cross-hairs aims your laser at the attacking birds; in travel, graphics of the island's topography lead you to safe and not-so-safe passages. Sound, however, is Christopherson's forte in 1981 and the special feature of Voyage of the Valkyrie. No less than the operas of Richard Wagner lend their strains to key stages of the game, which the developer pushes out in stereo, putting the second channel on an output usually reserved for sending data. The manual for the Apple release recommends a hardware hack to get it. After all, who wasn't making their own cables in 1981? Ten levels of difficulty vary the opposing forces by an average factor of ten.
Voyage of the Valkyrie

Voyage of the Valkyrie

Apple II - Released - 1981

Reclaiming the ancient Ø for his Scandinavian ancestors, pioneering game programmer Leo Christopherson takes one or two players to FUGLØY ("Bird Island") to conquer ten castles in aerial combat. Your ship is the Valkyrie; your deadly opponents are bird air forces of FUGLØY, classed from the neophyte Hawks to the powerful and clever Eagles. The birds are not the only peril. The island itself is a maze of mountain passes and treacherous fog banks. It does not change from game to game, though, and the box includes a worksheet for mapping out the features and safe routes between the castles. Each Norwegian-named castle has a different class of defender in varying numbers -- data provided at the start of each game -- so the best strategy for conquering the island may not be linear. You can speed past a defended castle or engage briefly and escape to refuel. Beware the roving Eagle squadron, though; it takes only one hit with your shields down to end even a veteran pilot's career.
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