Here's a simple cloud generator.
I've used it for my game Penguin with a Pumpgun and figured others could use it.
It generates clouds...
I've used it by generating, taking a screenshot and then adding the result to my backgrounds.

The world is coming to an end.

You awaken in a hospital infested with zombies.
Someone has left a pumpgun for you to try and make your way out alive.

Controls

Left and right: Move
Up and down: Enter and exit doors.
Z: Throw grenade
X: Shoot / melee attack when grabbed by a zombie.

Manual

zombies penguins roguelite hospital explosions gore action pumpgun

The work is coming to an end. So is the world.
You awaken in a hospital infested with zombies.
Someone has left a pumpgun for you to try and make your way out alive.

Controls

Left and right: Move
Up and down: Enter and exit doors.
Z: Throw grenade
X: Shoot / melee attack when grabbed by a zombie.