So me and my friend have recently been playing a lot of grounded, and we had some fun ideas for the game.
First of all is a new biome, the sandbox. The sandbox could have new resources like sand, or other things that are in sandbox. Not only would there be some new resources, and new bugs would spawn. These would be: Fleas: Similar to soldier ants, and can do a super high jump and bite you. You could use their parts to make some shoes that allow you to jump higher. There could also be a sand wasp nest, with a couple sand wasps, which would be around the same strength level as orb weaver/wolf spiders. You could use parts to make an armor set similar to spider, but the set bonus allows you to fall slowly, similar to a dandelion puff. Final bug idea is a bit of a stretch, but what if antlions also spawned, and could make traps in there to catch bugs and players. (they can live in sandboxes). You can see subtle signs that an antlion is there, and if you throw a bomb you instantly obliterate the antlion.
Ant queen: You would summon the boss by going deep into the colony, until you reach an area with a large of amount of young ants (maybe eggs you can't pick up?) Smashing these eggs/aants would awaken the ant queen, who has similar health to the broodmother. Possible moves are callign hordes of soldiers and workers, quickly overrunning un-prepared adventurers. The queen could also use it's wings to hover above the players, and start moving around, taking jabs at the people. Killing the queen could let you make a tier 3 dagger possibly, and a mutation that makes all ants neutral, and nearby ants will defend you unless you attack them.
Rolly pollies (aka pillbugs): A rolly polly can be found mostly around the oak tree, in damp and shady areas. (maybe have lifted rocks and areas for them to hide?) When attacked, they have similar stats to the ladybug, but slightly less health and defense. The rolly polly could than use 2 attacks, the first just being a basic jab or bite, the other having it curl up and run over the player. Another action would be to curl up in a ball if low on health, increasing defense. (I know the whole offensive thing about these are a stretch, but considering fire flies can shoot acid, I think this could be done). The armor set can be made, and would specialize in spear weapons. You get more damage with them, and you gain the ability to use some stamina (same amount to swing a mint mace), and you can roll forward or backwards, to get into a good position to begin jabbing, You also get a bit less armor than ladybug, but stronger than spider armor. Maybe you could make some sort of upgrade to the mosquito rapier, that is tier 3.
I'm not the greatest planner, so please revise my ideas. Thanks for creating this awesome game, can't wait for full release.