Game in one hour: CardJump

Developing a Card based Platformer Game

This weekend I participated again in the one-hour-game-jam, and created: CardJump, the card based platformer.

The theme of the jam was running, and I thought about developing a runner game where your actions are decided by cards.

Development process

When this idea came to me, I felt that it actually was a horrible idea. I felt that it's not going to work, that it's not going to be fun to play, and that it's not achievable in one hour. On the other hand I felt that it would be fun to try - that it could be a failure I will be proud to have for a one-hour-game-jam. After all, when else can I give such a crazy idea a shot if not in an 1-hour-jam?

In this video you can see my process while making this game in Unity:

Results and conclusions

So, surprisingly I made it, surprisingly it's kind of fun. But I can see some issues with this game style: it's very hard to balance, and it becomes a bit too chaotic.

You might notice that the art took as much time as programming for this project. I learned how to use unity's new cinemachine 2d camera.

The project files are accessible as usual in github:

I'm glad I made it, now I have new tools in my game design arsenal, and perhaps I'll come back to this idea one day.

Thoughts on how to develop this idea further:

  • Deck building!
    • Different weapons for different scenarios
    • Different loading times for different cards
  • Make it an endless runner instead of a platformer
  • Make a pipe-dreams style game, where you put the card on the surface

Previous games

If you want to check my previous one-hour games (all of them open source) you can check my account, or check my other posts:


CardJump.html Play in browser
May 12, 2019
CardJump.x86 22 MB
May 12, 2019
CardJump.apk 18 MB
May 12, 2019 38 MB
May 12, 2019
CardJump.exe 22 MB
May 12, 2019

Get CardJump

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