Monthly Tag


Have some fun! Explore the 138 articles tagged with monthly, page 3.




Enjoy 8bit Pylons? Yes, My ZX81 Game Has Plenty!

Enjoy 8bit Pylons? Yes, My ZX81 Game Has Plenty!

Here it is in July and I have another one of my dodging games to share. But, this one is a little bit different. You don’t need to dodge all of them, or in this case go through all of them. Nevertheless, if you want the juicy bonus points, you need to grab as many of the blocks as you can. The twist is how the pylons change as you play.


Look out for the Death Maze as You Escape the Monster

Look out for the Death Maze as You Escape the Monster

I seem to like avoid the wall games. I wrote many of them over the years, inspired by other games I played like “Cavern’s of Mars.” It isn’t a surprise as the ZX81 made it pretty easy to write a vertical scroller. For Death Maze, I added a little twist. Is it enough to make the game fun to play? Let’s find out.



Quick, Stop the Bomber before It Destroys You

Quick, Stop the Bomber before It Destroys You

Wait what? Another month? Another game? You betcha! April is upon us, and pretty much over. So, to pass the time I introduce Blaster, a shooter with a twist. Use Z to move left, . to move right, and M to fire. Not the most exciting game ever, but you’ll find it hard enough to spend a few minutes with it.



How to Make Digital Rain on Your ZX81

How to Make Digital Rain on Your ZX81

I’ve been wanting to create my own version of digital rain for some time. The effect is well known from the Matrix movies, which used florescent green characters. Inspired by that version, I decided to go retro and generate a black and white stream of characters using the ZX81. Let the geekiness begin.



What Can You Do with a Simple ZX81 Animation?

What Can You Do with a Simple ZX81 Animation?

Although may of my early programs were games, I spent a fair amount of time experimenting. December’s program, Slow Down, is one of my animation experiments. It is a straight forward sprite animation, with a twist. I used the ZX81 against itself to slow it down. If you’re ready, let’s dig deeper.



Windmill Is a Quick and Dirty ZX81 Animation

Windmill Is a Quick and Dirty ZX81 Animation

There are a ton of windmills in Idaho. Mostly big ones for power, but you see a few smaller ones used for irrigation and wells. But, when I wrote this month’s program, I couldn’t remember any being around where I lived in Indiana. No matter. I still wrote a simple windmill animation, and today is the day to share it.


Tabular Is My Simple and Easy ZX81 Word Processor

Tabular Is My Simple and Easy ZX81 Word Processor

To date, most of my programs have been games and animations. It may come as a surprise that I also wrote a word processing program. Using a custom printer command, I designed a font that would allow you to use lowercase letters. Let’s explore September’s program of the month to see how that worked.


Quickly Avoid the Spiders in the ZX81 Game Tarantula

Quickly Avoid the Spiders in the ZX81 Game Tarantula

Tarantula, August’s program of the month, was part of a pair of games that made me think I was a game developer. At the age of fourteen, I didn’t let problems like the lack of a distribution channel tarnish my dreams. Although I didn’t make it into gaming, it’s still fun to look back on what could have been.





Bringing an Old ZX81 Sketch to Life with BASIC Is Absolutely Crazy

Bringing an Old ZX81 Sketch to Life with BASIC Is Absolutely Crazy

Foreign to many developers today, I have a notepad and binder full of ideas from my ZX81 days. The notepad contains early program snippets. In contrast, I have sketches and designs crammed into a binder. Flipping through it, I landed on a Star Wars sketch that became the basis for this month’s program.




Can you hack the computer and save the world?

Can you hack the computer and save the world?

“Agent 51, your goal is within reach, but there is a problem.” “Understand,” you reply. Professional as always, you only allow a hint of annoyance in your voice. “Explain.” “Well, the plans are in the room in front of you, but the floor is a trap. You need to deactivate it using the terminal to your right.” You look down at the screen, a singular “READY” stares back at you. “Sounds easy enough,” you reply. “It isn’t. The interface is protected and, sadly, our operative died before he could tell us the code.” “So what do I do?” “You’re going to have to hack it. Our operative left a back door into the system, if you can find it. You can do it, Agent 51.” You nod at the voice in your ear. You can do this. Play begins with imagination. Computers are great for role playing and Code IV was one of my programs that helped enable a story. As a kid, I often augmented my play using my ZX81. Although the narrative above isn’t exact, it embodies what I was thinking when I wrote this month’s ZX81 program. Fun, adventurous, and unfair, can you crack the code and disable the floor?


Can you guess the right code to win?

Can you guess the right code to win?

I used to play Mastermind when I was a kid, a simple code breaking game. One player would set up a sequence of colored pegs and the other would have to guess it in a set number of turns. My version, called ZX Master Mind, has the computer creating the code. Can you guess the three numbers in sequence before your ten turns run out?


Can You Avoid Death in the ZX81 Game Stick Shift?

Can You Avoid Death in the ZX81 Game Stick Shift?

Dodging games were the rage back in the early ’80s. Wanting to add my own take on the genre, I created Stick Shift, November’s program of the month. The goal is simple. Dodge other cars, oil spills and spikes while not crashing into the wall. Mess up? Well, it’s game over for you. Don’t fret though, it isn't that hard—yet.