Sebastian Scaini's One Hour Game Jam Collection


June 2017 - Present, 1 Hour / Game



A collection of games made in an hour each for One Hour Game Jam.


Making a Game in an Hour

Some people have called me crazy, others don't think it's possible, but I assure you, it is very possible to make a decent game in an hour. At first my games were pretty rough. I would overscope and fail, or make something weird with broken mechanics or things I forgot to implement (like scores being able to go negative or no fail states). But with practise, I got better. Now, I'd argue I can make a decent game in an hour and you can too if you follow these easy steps.

Step 1: Planning and Designing (5 Minutes)

Scope is the most important part of making a game in an hour. If you overscope, you won't finish in time.

I recommend allocating 5 minutes to planning and designing. Think of something small, then commit to it. Don't question whether or not it'll work or be fun. You don't have time for that.

Here's a handy list of things to consider with your design.

  • Keep everything on one game screen.
  • Make the game a score attack arcade game.
  • Have the game be easily replayable.
  • Keep the game short (or infinite).
  • Decide on a simple aesthetic (basic shapes, purposely bad art).

Step 2: Programming (20 - 30 Minutes)

Now you need to code your game. Forget your best practises, throw nice syntax out the window and write more code. It doesn't matter if it's clean or efficient as long as it works. Don't stop to think if there's a better way, just write the fastest one you can think of that works.

Step 3: Art (5 to 15 Minutes)

Next you've gotta make art for your game. Just draw something, anything that works. Chances are you know what needs to be done since you designed your game already, so just draw it as fast as possible. Purposely bad art is an aesthetic that will save you. Alternatively, simple shapes is a nice aesthetic for a 1HGJ game.

Step 4: Finish Implementing (5 Minutes)

Implement all the assets you made and maybe run a quick test of the game before submitting.

Step 5: Submit (5 Minutes)

You're done, now it's time to submit. Assuming all went well, you'll submit just in time!


This is my process every time I do the jam. There have been times where I've been unsuccessful, but with this formula for a game I guarantee you'll have at least something to submit by the end of the jam time.