🔗 Collision Tutorials

If you're getting on a bit like me, you might remember these "Life" simulations. They were a popular project on early home computers. If you're not familiar with it, it starts with a grid of randomly created "cells" that are either "alive" or "dead", and there are rules to determine if each cells dies, stays alive, or is newly created, depending on how many live cells are around it. With each successive "generation" the grid evolves and can spawn all sorts of interesting patterns, shapes that move across the grid, and so on. It can be quite meditative to watch. If you'd like a deeper overview, the Wikipedia article is excellent: https://en.wikipedia.org/wiki/Conway%27s_Game_of_Life

Here's the cartridge: https://www.lexaloffle.com/bbs/?tid=158250

Hi there! I'm attempting to make a Pico-8 game for the 2026 GMTK Game Jam where the player is playing through a similar room over and over again on a time limit, and I intend for it to get harder to complete the deeper you get. I'm running into an issue where loading a new map once the player gets to the exit only does so visually. For instance, the spikes on the floor in the second map square do not have any collision; however, the collision for the spikes in the first map square is still there and you can die to ghost spikes.

What sort of code do I need for the map to load correctly? I tried looking at Celeste Classic for some guidance but the code there flies just over my head due to the techniques used, and I don't have time to play around with it to really understand what's going on. Looking online only got me things about how to load actual carts and whatnot.

Any help would be vastly appreciated!

https://www.lexaloffle.com/bbs/?pid=33272#playing

Hiya, I'm not a reddit user by any means but I need some help with an issue I've had for months and I can't wrap my brain on exactly what I should do with it.

Basically, I have this cute Goat, their name is Clover. I was really happy with the movement I gave them and still am, they move like Kirby with the High Jump ability and I think it's cool. But the problem with Clover's movement is that they're too fast even when running normally. The little rascal tends to get stuck in walls by accident and this goes for left and right collision (Up and Down are fine atm).

So Basically I'm asking how I can accommodate for my hyperactive goat child's movement without ruining it by slowing them down? I want them to keep their movement as is but I have no clue how to fix the collision to factor in how fast they move. I think it's manageable but nothing I've tried really worked, it's all band-aids and visual fixes but not functional ones.

Anyone know how I can fix my X collision?

Added 4 tracks, billboards, trailing camera, AI and position calculations. Still more work, but getting there. Thanks for all the interest on the last post - got me motivated to keep going.

https://www.lexaloffle.com/bbs/?pid=15296#playing

https://www.lexaloffle.com/bbs/?pid=193340#p

Hi everyone! I just published my first PICO-8 game. It is the first project I took seriously and spend quite a time developing. I'm really happy with the result and want to share the game with you. Feel free to leave your feedback!

"Agar" is an Agar.io clone, where you play as a cell (I like calling them agars) and your only goal is to constantly grow bigger by eating food (small circles laying everywhere) and other agars.

The only difference from the original - instead of splitting yourself into the smaller agars by clicking action button, in this version you speed up and reducing your size.

I am thinking about making a handheld exclusively for Pico 8 (no other emulators). But I do think wifi, splore and instant sleep/fast boot are necessary for a good experience. How do you think it's the best way of achieving it?

This one is galaga on pico 8

https://www.lexaloffle.com/bbs/?pid=187257#p

And violet signal

https://www.lexaloffle.com/bbs/?pid=27267#playing

Not fast, low RAM and storage, but works quite well for what it is. Keyboard is surpassingly usable for development and the little controller works without reconfiguration.

Guide your little green-haired friends through all 100 levels from the original NES version, lovingly recreated in PICO-8 and inspired by the Amiga and SNES classics, with faithful gameplay, charming pixel art, and toe-tapping music.

itch: https://buzzard1337.itch.io/lemmings

Lexaloffle bbs: https://www.lexaloffle.com/bbs/?pid=193281#p

Playing Pico8 games on the Anbernic RG Rotate is a great experience!

I'm using Pixl8 since it is an Android device.

Create fear 2 project origin in pico 8

Create Gta 1st or 3rd person game

Create Halo

The bank is just down the street. Good luck.

https://lexaloffle.com/bbs/?tid=158156

About a year ago, I discovered PICO-8.
At first, I fell in love with its creativity and the incredible games people were making. But it quickly became much more than that. PICO-8 opened the door to an entirely new world for me, a world of retro gaming, emulation, handheld consoles, and all the games I grew up playing. It reignited a passion I didn’t even realize I’d been missing.
As a visual designer, I’d had countless ideas for games for years, but I’d never actually built one, because my lack of development skills.
This game changed that.
It’s the very first game I’ve ever made, and my first real step into game development.
Today, I found out that it was featured by PICO-8.
Honestly, it still doesn’t feel real. This was something I dreamed about from the moment I discovered the platform, and seeing it happen is incredibly motivating.
More than anything, this feels like a sign to keep going.
I want to make more games, not just for PICO-8, but also card games, physics-based games, and, hopefully, games that one day will be released on Steam.
This feels like the beginning of a new journey, and I can’t wait to see where it leads.
Thank you everyone for trying my game and thanks to Pico-8 team for picking this to be on the featured list among amazing talented creators.

This started as an attempt at the original tempest then I added a camera and it worked really well and I kept adding stuff and then I found out the original T2K source for Jaguar is on GitHub so if I was willing to dig through some (very well commented) 68K asm I could accurately recreate the gameplay even if I had to do the renderer from scratch.

(edit) I added mouse support tonight. If anybody has a USB spinner and is willing to give it a try and let me know what settings feel good for potential defaults it would be awesome.

https://www.lexaloffle.com/bbs/?pid=193066

I’ve hit the dreaded 8,192 token limit so it’ll probably be a bit before the next update as I work around that. Plan on releasing the full unminified source when the project wraps up.

And yes the score wraps around it’s hilarious that I keep forgetting to fix that every update.

Hello!! I am so excited to share an app I've been working on called P8Launcher. The app is powered by p8rt_ios, an iOS WebAssembly module created by Zep, which provides native compatibility for running PICO-8 carts on your iPhone (https://www.lexaloffle.com/pico-8.php?page=p8rt_ios).

As part of this introduction, I am running a public beta with 100 spots available to start! You must have an iPhone running iOS 26 or newer. Depending on how quickly the spots fill up, I might expand the public beta further (but I wanted to start smallish).  Here is the TestFlight link: https://testflight.apple.com/join/tdaWbwUa

Here are some highlights about the app:

• free! You will NEVER see a pop-up or paywall of any kind. All app features are available from the start. 
• No data collected. Aside from visiting the Lexaloffle BBS in your web browser, everything stays local on your device. 
• Full multicart support (even multicarts played from the BBS)!!
• Auto Save, Quick Save/Load, and Manual Save States are available.
• Curate and organize your cart library with custom genre tags.
• Controller support for both gameplay and app navigation.
• Custom controller mapping with profiles that recognize which controller you are using.  
• Create fully customizable touch control layouts by moving and resizing every control (even the gameplay screen).
• You can set any color or wallpaper as a background in both the library view and during gameplay (combining this with the custom touch control layouts means anyone can make custom skins, no special tools required).
• There are a handful of widgets you can set on your phone's Home Screen and you can set quick actions to the app's icon too!
• You can change the display style (with filters like CRT, LCD, etc). 
• Lots of other customizations, including custom cover artwork, orientation locks, haptics, and more.
• The app tracks a bunch of stats (playtime, etc) for you and even has achievements (all local, on-device)!!

Staying connected to the PICO-8 community is really important to me. This app is a companion to the Lexaloffle BBS, and not a replacement. P8Launcher makes it easy to jump back to each cart's original thread so players can discover new carts, leave comments, and support the people who made them.

I've poured a lot of time into this project because I genuinely love PICO-8, both as a player and as a creator. Every design decision was grounded in my respect for this community, and I hope that comes through when you use the app.

For my planned 1.0 release to the App Store, I consider P8Launcher feature-complete. That said, I'd love any feedback, bug/crash reports, or other thoughts you have. Thanks so much for taking a look, and I hope you enjoy it!

Trying to get the physics right. Feels pretty good so far. Wanted to post in case it inspired anyone else.

Hey everyone.

I recently found Pico8 after getting my Trimui Brick, and I love these games more than emulating others. Love the diversity and the ones I've had a surprising amount of fun with are the 'non games' I've found. Which led me to looking for a cartographer type game, but I can't seem to find one.

I'll try to describe what I mean. It would be a simple top down map editor that lets you place terrain tiles. Hexes or squares I imagine, with a hex tree for a forest and another for a mountain. So you could start with a clean slate and slowly build a custom map. Random gen would be neat but I'm mostly looking for a completely player built world to use alongside dungeon generators and such.

It seems like that would be an easy idea, and right up the alley of some pico games I've found, but I don't see anything similar on my console nor a quick Google search. Have y'all see anything similar to what I described? If so, please tell me! And if not, cool idea for a bored dev maybe?

I think that a Diablo clone would be great in a Pico project! I looked for ones on Pico-8 but none of them really matched the game well enough.

What are your thoughts? Is it even worth it in the first place?