May 1, 2021
Ludum Dare is a game jam (similar to a competition, but with a focus on celebration rather than competition) where participants have 48 hours to make a game based on a theme that’s announced at the beginning of the event. Last weekend was Ludum Dare 48, which is a particularly fun milestone: the 48th edition of the original 48-hour game jam.
Part of Ludum Dare tradition is writing a retrospective or postmortem after the event that talks about the process of creating a game, what went well, and what didn’t go so well. This is the retrospective for my entry The Rabbit Hole to Ludum Dare 48.
If you haven’t played the game yet, go play the Rabbit Hole game!
Barking Down the Wrong Tree
The theme is announced on Friday at 6PM in my time zone, and it turned out to be deeper and deeper.
I went on a brainstorming walk, and an idea started to form: maybe the game was about a plant, with roots that grow down. Maybe you have to balance choosing between growing the roots down to get more water, or out to get more nutrients, or growing the plant out to get more sun. Maybe the plant grows up when you have the right balance? Or maybe you have to spend resources? Or something?
I didn’t quite have a full game in my mind yet, but I was itching to get coding. I created a p5.js sketch where I could grow a tree either up or out. I love the idea of randomness and giving each player a unique experience or artifact, so I wanted each player to end up with their own plant based on randomness and their own decisions.
But this didn’t feel very fun or interesting. I was getting frustrated, so I decided to quit for the night. I ended up watching Contagion which turned out to be a super intense, super accurate portrayal of a global pandemic. Let’s just say Friday night was rough.
I’ve said before (for example in the Power of Boredom and Quadrilateral of Creativity) that one of the best ways to generate ideas about what to code is to get away from the computer. So I wasn’t too surprised when I woke up with a new idea: what about a game that plays with Wikipedia rabbit holes? Could I start players at one article, and they “play” by clicking links in the page to reach a goal article?
Image credit: xkcd
I spent Saturday morning playing with the
iframe tag. It was pretty easy to show a particular Wikipedia article in an
iframe or navigated to a new URL?
It turns out that for security reasons, the answer is no. That’s probably a good thing overall, but it meant that my game wasn’t going to work the way I originally hoped. It was time to give myself a default thought and go on a walk to get some lunch.
After I figured out how to use the Wikipedia API, I was able to iterate pretty quickly. The API provides information about a particular Wikipedia article using an endpoint like this:
I call the API to get the content of an article, and then I cut that content down to just the introduction instead of the full page. I add my own
onclick handler for the links to intercept the page navigation.
The “game” is a wrapper around that core content. Each level has a different start article, and the player clicks through the links in the content to reach the level’s goal article. I also added a couple other features: I made links bolder so they’re easier to see, I added a history feature so players could backtrack, and I added a “give me the answer” button for folks who got stuck on level.
You can read through the code file if you’re curious.
This came together pretty quickly, and by the end of Saturday night, I had a working game.
Whenever I do Ludum Dare, I try to finish the game by Saturday night, so I can spend Sunday polishing it up. This time around I spent a couple hours on Sunday making some tweaks to the levels.
What's a Wikipedia "rabbit hole," you ask? It's when you visit us to read about Napoléon Bonaparte and suddenly it's 3am and you're learning all about the first painting to earn a world record for largest depicted number of cats. Try it! It's fun!— Wikipedia (@Wikipedia) November 25, 2019
I briefly considered putting together a server that let uses submit their own levels, but I resisted that feature creep.
Another feature I almost added was a random mode: I could use the API to get a random article, then click through a few layers of random links, and use that as the goal article. It could grow in difficulty over time, and it would solve the “problem” of the game deteriorating over time. I decided to stick with predefined levels, but I might make a video of implementing the random mode in the next few weeks.
I was officially done, and with a couple hours to spare!
I’m more interested in weird creative toys and visualizations than I am in most games, so my Ludum Dare entries tend to go in that direction. This time was no exception. I don’t know if I would call this fun- I don’t even know if I would call it a game. But I’m happy with the result.
I’m a strong believer in getting away from the computer, giving yourself a default thought, and letting your brain do some thinking in the background. This has worked really well for me, and you might notice that all of the major decision points above happened when I was away from my computer. This also wasn’t the first time I almost dropped out on Friday night and then woke up with a fully-formed idea. If you’re ever feeling stuck, get away from that computer!
So far, I’ve found two other games from this Ludum Dare that use a similar idea. It’s really interesting to see what we have in common and what we did differently. Check them out: Find the Page and Wiki Vortex!
Posting my google search history has become a bit of a tradition for me, so here is everything I googled during Ludum Dare:
And here’s a timelapse I made from the screenshots I took of the game every time I made a change to it:
You can play the Rabbit Hole game!