This is a collection of games and other programs that I wrote
for the Psion Organiser II.
Programs marked with * heavily rely on machine code rather than pure OPL.
Programs marked with # have not been published elsewhere before as far as I know.
Software made by other people can be found on a different page.
| Name | Model | Description |
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| Ayo | CM/XP/LZ | Game of Ayo, also known as Mancala |
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| Bomber | LZ | Game in which you have to flatten a ruined city so you can land your descending bomber plane. |
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| Boulder | LZ | Puzzle game similar to Boulderdash, in which you push rocks around and dig your way to the exit, hopefully without getting stuck or killed by dropping rocks. |
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| Boulder Levels | LZ | Extra set of levels for Boulder. |
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| Breakout # | LZ | Break down walls by bouncing a ball off the bricks. 14 varied levels. |
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| Connect 4 | LZ | Play Connect 4 against the Psion |
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| Chomp | LZ | Game in which you and the Psion take turns to eat away at a corner of a rectangular chocolate bar. Whoever eats the last square loses the game. The most interesting aspect of this game is that the Psion learns from its mistakes, and so becomes a stronger player each time it loses. |
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| Cupball # | CM/XP | A memory game based on the Cups and Balls trick. |
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| Explode # | LZ | Explosive board game, played against the Psion. |
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| Fifteen | CM/XP/LZ | Classic sliding puzzle game with 15 tiles with a graphical design instead of numbers. |
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| Hanoi # | CM/XP | The tower of Hanoi puzzle. |
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| Invaders * | LZ | Shoot the invading aliens until you have blocked their path. |
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| Juggle Generator # | CM/XP/LZ | Generates juggling patterns (siteswaps) for a given length and number of balls. |
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| Life * | LZ | Simulation of Game of Life, the cellular automaton by John H. Conway. |
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| Maze * | LZ | A 100x100 randomly generated maze you can walk around in. |
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| Mem # | CM/XP | A memory game, like Simple Simon. |
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| Mastermind * | CM/XP | Play the Mastermind colour guessing game against the Psion. |
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| Mastermind * | LZ | Play the Mastermind colour guessing game against the Psion. |
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| Nim 1 # | LZ | Clasic Nim game played against the Psion. |
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| Nim 2 # | LZ | Multi-pile Nim game played against the Psion. |
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| Nim 1 XP # | CM/XP | Classic Nim game played against the Psion. |
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| Nim 2 XP # | CM/XP | Multi-pile Nim game played against the Psion. |
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| Nim 3 XP # | CM/XP | Nim game variant where you want to end up with an odd total number. |
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| Nim 2D # | CM/XP | Two-player Nim game played on a 4x4 board. |
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| Pegs | LZ | Peg Solitaire |
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| Plato | CM/XP/LZ | Animations of four of Platonic solids (tetrahedron, cube, octahedron or icosahedron). |
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| Queue # | CM/XP/LZ | A one-dimensional board game played against the Psion. |
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| React # | CM/XP | A program to test your reaction time. |
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| Reversi | LZ | The game of Reversi, also known as Othello. |
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| Row # | CM/XP | A kind of connect 4 played on a single line. |
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| Schuif | LZ | Puzzle game with 3×3 set of tiles which are mixed by sliding any row or column. Try to beat the Psion. |
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| Scoop | LZ | Game where you scoop up space debris. |
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| Scroll * | LZ | A scrolling maze game, where you have to find the key and the exit before the monsters find you. |
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| Snowbrd * | LZ | Game where you have to snowboard down a slalom course as quickly as possible. |
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| Tetris * | LZ | The classic game of Tetris, turned on its side. |
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| Tic | CM/XP/LZ | Standard Tic Tac Toe. The Psion is a good but not perfect player. |
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| Ttt | CM/XP/LZ | 3D Tic Tac Toe, also known as Qubic, played on a 4x4x4 cube. |
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| Twist | LZ | A two-dimensional analog of the Rubik's Cube, with a 3x3 set of tiles of which any 2x2 square can be rotated. |
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| Worm | LZ | The classic snake game, in which the snake gets longer as it eats. |
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| Worm2 | CM/XP/LZ | The classic snake game, in which the snake gets longer as it eats. |
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| Name | Model | Description |
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| Design # | CM/XP/LZ | UDG designer. |
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| Easter # | CM/XP/LZ | Calculates the date of Easter Sunday of any year. |
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| Hexadecimal Calculator * | CM/XP/LZ | A simple calculator for hexadecimal numbers. |
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| Info | CM/XP/LZ | An alternative to the main menu's INFO option. |
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| Keys v1.11 * | CM/XP/LZ | A utility for entering characters unavailable on the keyboard. |
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| Pos2Org * | 2-line POS | Turns any 2-line POS model into a usable CM/XP organiser. |
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| PrintFile | CM/XP/LZ | Print out any data file on a Psion Printer or via Comms Link. |
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| Utils | LZ | A set of utilities for changing settings (sound, keyboard clicks, border character), and unit conversions (temperatures, weights, distances) |
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| Xfiles | CM/XP | File utility similar to the XFiles option of the LZ. |
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| Y2000fix * | CM/XP | Replaces the TIME menu option to (partially) fix the year 2000 problem. |
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| Romsend | CM/XP/LZ + PC | Create a file on the PC with an image of the Psion's ROM. |
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| Sendpack | CM/XP/LZ + PC | Create a file on the PC with an image of the any particular pack. |
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| Sendprog | CM/XP/LZ + PC | Utility for easily sending/receiving any kind of file to/from the PC. |
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