hpcalc.org - HP 28 Archive

HP 28 Games

The first size listed is the downloaded file size and the second size listed is the size on the calculator.

There are 23 files totaling 98 KB in this category.

3D Adventure   (details) 28 ENG   13 KB / 32 KB
An adventure game for the 28S featuring 3D line drawings of the maze being navigated. Also including a wide variety of items to collect and monsters to fight. Originally posted to Usenet in 1990.
By Paul Dale. 2005-05-30

BlackJack   (details) 28 ENG   4 KB / 2 KB
Blackjack, the game of 21, for the HP 28.
By John Fredine. 1998-07-31

Blob   (details) 28 ENG   5 KB / 2 KB
Stand face to face to horrible monsters (called blobs). You are supposed to shoot as many blobs as possible with your bazooka before you end up between the bloody jaws of a mini-BLOB.
By Eric Toonen. 1998-07-31

BlokDrop 2.1   (details) 28 ENG   4 KB / 3 KB
Tetris-like program.
By Dave Still. 1998-07-31

Chess   (details) 28 ENG   5 KB / 5 KB
Fairly complex chess game for its time, though slow and limited by modern standards.
By Paul Dale. 1998-07-31

Golf   (details) 28 ENG   2 KB / 1 KB
Very simple golf game.
By Alex Ballantyne. 1998-07-31

INCO   (details) 28 ENG   2 KB / 1 KB
Game based on a 'simple' idea. When you enter a number and press the 'INCO' button the calculator will start with a 3 by 3 array containing only nines, mixing it the number of times you entered by picking a row and a column in which it will decrease all numbers by one. It will then display the resulting array and your objective is to get the array containing only nines back by pressing a digit, thereby increasing all numbers in the row/column you picked.
By Joachim Isaksson. 1998-07-31

Le Pendu   (details) 28 ENG   2 KB / 1 KB
Two player game where one person gives a word and the other person must guess it within 5 guesses.
By Nicolas Godard. 1998-07-31

Magic Square 1.1   (details) 28 ENG   6 KB / 3 KB
Try to turn on every dot in the square except the center dot.
By Doug Cannon. 1998-07-31

Mastermind   (details) 28 ENG   3 KB / 1 KB
The famous game of Mastermind, with 16 colored pegs.
By Stephen R. van den Berg. 1998-07-31

Memory Game   (details) 28 ENG   5 KB / 6 KB
36-card game of Memory.
By Roger Jans. 1998-07-31

Moon Lander   (details) 28 ENG   5 KB / 3 KB
Land on the moon using the least amount of fuel.
By Dick Nungester. 1998-07-31

Pacman   (details) 28 ENG   1 KB / 1 KB
Simple interactive Pacman animation.
By Doug Cannon. 1998-07-31

Poker 1.0   (details) 28 ENG   4 KB / 4 KB
Fairly complex poker implementation.
By Dave Still. 1998-07-31

Reversi   (details) 28 ENG   5 KB / 8 KB
Reversi implementation for the HP 28S.
By Paul Dale. 1998-07-31

Shadow Castle   (details) 28 ENG   3 KB / 3 KB
Move a Smiley through a Shadow Castle.
By Jean-Sebastien Monzani. 1998-07-31

Simon   (details) 28 ENG   2 KB / 2 KB
Simon game as well as a screen reverser.
By Strauss Erez. 1998-07-31

Space Chase   (details) 28 ENG   10 KB / 2 KB
ScreenshotA three-ship dodging game for the HP-28S, written in 1989 at Tennessee Tech by Randy Weems, Shawn Yeager and Michael Morrison, for an algorithm design course taught by John Selden. Also includes a System RPL version for better performance.
By Michael Morrison. 2026-09-14

SUBS   (details) 28 ENG   2 KB / 2 KB
Submarine hunt game.
By Rickard Petersson. 1998-07-31

Tank Battle   (details) 28 ENG   6 KB / 4 KB
Arcade game where you must fight your opponent with tanks and jets.
By Ryan Ridges. 1998-07-31

Tetris   (details) 28 ENG   4 KB / 3 KB
Tetris game, only for the 28S.
By Dirk de Bruycker. 1998-07-31

Towers of Hanoii   (details) 28 ENG   1 KB / 1 KB
Move discs from one peg to a third. Also supports a printer.
Author unknown. 1998-07-31

Yahtzee   (details) 48 28 ENG   4 KB / 2 KB
ScreenshotSimulates a set of dice for the game Yahtzee. This is very convenient if you're traveling, because real dice in an airplane are a pain.
By Jurjen N.E. Bos. 2017-06-18

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