I was trying to change my wallpaper but I keep getting the message "can not set wallpaper from sandboxed process."
What I did was click the Picotron menu at the top left > System Settings > and then the wallpaper section under the desktop tab. This is without any custom wallpapers, trying to switch between the default ones.
Whenever I click a wallpaper it shows the error message. It only gets applied after a reboot.
Adding:
It happens on both my Windows 10 Desktop and Windows 11 Laptop.

Speed tech is not required in most of this mod. You'll know when you need it!
List of tricks for the late levels: https://celesteclassic.github.io/glossary/
If flashing visuals can hurt you, please disable the effect in the pause screen after starting.
Huge thanks to these really cool people:
**
bacon_good - playtesting
flyingpenguin223 - playtesting
kikooDX - playtesting, getting me to release the mod, also inspired visual effects
petthepetra - playtesting, really valuable feedback, inspiration (foreberregd...)
wisper - playtesting, being way too determined
faith - idea for the 3d model, being an amazing friend (rest in peace bestie)
warspyking - playtesting (and recording it all- that was so nice)

NoonShade | Multiplayer Duelling Game
NoonShade is a multiplayer game where two players try to out-duel each other in a best of 7 format. Both players can jump and shoot once per turn. The key is to fire your weapon exactly at noon. If you shoot before noon, you automatically lose that turn. The game mixes strategy and guessing with quick reflexes.
It’s a small game, but fun to play with a friend. I hope you enjoy it!
Feedback is always appreciated.
How to Play
Wait for the perfect moment! Shoot before noon and you’ll lose the turn.
Best of 7 format, first to 4 wins.
Player 1 Controls (Left Side)
Jump: (O) - Z on Keyboard
Shoot: (X) - X on Keyboard

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[8x8] |
latest version
1.0.2
PORTZZ - Space Dock Defense
Portzz is an early arcade style game that focuses on highscore and speed.
Gameplay
- Defend a space dock
- Shoot enemy ships (red)
- Don't shoot your friends (green)
After reaching the docking area green ships will dock and get out of your way,
while red enemy ships will try to breach the base (your tower) - don't let them or
the game is lost!
You have 3 shields - when you fire on a friend you loose one shield.
If you have no more shields left the game is lost.

Controls
- ⬅️➡️⬆️⬇️ shoot laser
- 🅾️ fire nuke

11.12.25 - Tutorial bugfix
Fixed issue where tutorial was showing every time a new game started. Now it will only show once, and won't show up again unless the cart data is reset via the pause menu.
About
Picotan is a simple but addictive brick-breaker game inspired by the original BBTAN (2015), and similar titles Ballz (2017), Holedown (2018), Piffle (2018).
Instructions
- Launch balls at bricks and destroy as many as possible in a single turn
- Each time a ball hits a brick, that brick's health reduces by one
- Once a brick reaches zero health, it is destroyed
- New bricks will spawn with more health after each round
- If a brick reaches the bottom of the screen, the game is over
- Try and reach the highest score possible!
Controls
This game supports keyboard, gamepad, mouse, and touch input, all of which can be switched between on the fly.
- Z / Left mouse (hold): Aim shot
- Z / Left mouse (release while aiming): Launch balls
- X / Right mouse (release while aiming): Cancel aim mode
- X / Right mouse (release while launching): Recall all balls / skips current turn
- You can also press the Recall button that appears while launching

Dream Ghoul is a small, silly game I made my for wife for her favorite time of year. Find the keys, grab the hearts, and meet your dream ghoul! Just move around with your arrow keys and try not to bump into things. (Or do bump into things; it's funny to watch!)
I hope it amuses you for a minute or so.
back story
I'm a professional software engineer with more than 30 years experience, but have been having a blast learning game development with Pico-8 the past few months. I drew the main character one evening and built a tiny game around him. This is my first game I've shared publicly. Thanks to Lazy Devs Academy for the great tutorials and Caitlin for the inspiration.
Get ready to bounce, break blocks, and use superpowers! Battle Shield Enhanced is an action-packed game of reflexes that combines pong, brick-breaking, and one-on-one combat.
Game Description
In Battle Shield, you control your character to hit the ball and destroy your opponent's blocks. The goal is to run out of blocks before your opponent or beat the AI in single-player mode. As you progress, the game becomes faster and more challenging, and you can use dashes and superpowers to change the game.
Key Features:
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Multiple game modes:
- PvE: Player vs. AI
- PvP: Player 1 vs. Player 2
- Increasing difficulty levels.
- Dash to move quickly in any direction.





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