Burning sand, a fully open sourced elements game with element reactions and mixing.
Burning sand is interesting because there is NOT a single thing you cannot do in it.
You can make moving particles, bombs, buildings and things of that sort.
In the config, the default elements all serve a purpose.
A list of some:
Fire turns water into steam
Steam turns into water
Water grows plant and wood
Wood grows into plant
Fire burns plant
Fire makes C4 explode
Fireworks shoot up, they can catch plants and wood on fire too
Fire extinguisher puts out fire
Sand makes water rise above it
Salt turns Water into Saltwater
Fire turns Saltwater into water and salt
Salt kills plant
Parasite eats plant
Seed turns into plant
Fire burns oil
Crystal grows
Stone makes every liquid rise above it
Antimatter melts everything
Void eats everything
??? destroys everything on the screen except plant
Replicator grows anything
Elevator makes everything rise above it
Fire destroys Earth
Acid destroys everything except wall
Glue makes things sticky
Ice melts into water slowly
Cloud dissapates into water
Comet catches everything flameable on fire
Lava catches plant on fire and is a solid/liquid, and turns water into steam
Water turns Lava into stone
Cera/Wax burns when lit then melts
Gasoline(Teal gas) burns slowly and rises
Natural gas(Purple gas) burns fast and rises
Glue explodes on contact with Fire extinguisher
And the game is fully moddable, meaning you can make diffrent reactions, like water explodes on contact with oil :D
Edit:
silly me 
