Scarcity adds options to make resources a bit more scarce, including hunger value modification, limited water bottles, and nerfed falling block physics.
Colorful Ghasts lets you tint vanilla Happy Ghasts with any dye, blending colors on the 2nd application to create smooth, averaged hues. Right-click with a Wet Sponge to clear the tint.
Decharted is a mod based around the corruption of the world, this mod allows multiple ways for the player to send their friends (or foes), to a separate dimension to have them stuck. You may also be able to spawn trap players before they die and respawn.
A Fabric mod adding dimensions of play to Minecraft! New armor upgrades, biomes, mobs, and resources expand the core gameplay to introduce more playstyles and non-linear progression.