In this Asteroids clone, you get points by shooting enemy ships, and asteroids which gradually break down into smaller and smaller pieces. Your controls are rotating clockwise or counter-clockwise, thrusting, firing, and hyperspace. As you progress, the levels will get more and more difficult as you move into areas with more and more asteroids.
Zap'em is an action game for one player. You control a spaceship on the left side of the screen which is capable of moving up or down and firing lasers. Coming towards you from the right will be numerous enemy ships. You need to shoot as many of the enemies as you can in order to earn points. While many of the enemy ships take only one shot to destroy, some will require multiple hits and a few will even be ghost ships and can disappear temporarily. Your ship has a limited amount of fuel which will steadily decrease; the game ends when you have no more fuel left.
Chess was written in March, 1980 and converted to IBM PC in December, 1981. This is probably the very first chess game running in MS-DOS.
Taking it's age into account, it's no surprise that the game features only text-mode graphics. The chess board and the pieces are drawn using ASCII characters. For the same reason, it's also no surprise that the user input is based just on keyboard commands.
In Chess there is no multiplayer mode - you play only against the computer. As usual, in this kind of game, you can select the A.I.'s skill level. The game offers 24 difficulty levels.
The Wizard's Castle is a text-based role-playing game. The player creates a character, choosing between the races of elf, human, dwarf, and hobbit, distinguished by their personal statistics (strength, intelligence, and dexterity). The player can also choose the initial weapons, armor, and items to take on the quest. When all is ready, the hero ventures into the dungeon.
Gameplay is in some ways similar to a text adventure, with text descriptions replacing graphics. Simple commands are used to move from room to room, consult a map, or look around. However, many times the player only needs to choose from a several options for the current situation, such as during battles. There are vendors the protagonist can trade with, mystical pools which can give or take away power, warps to far parts of the castle, numerous monsters to fight and assorted treasures to find.