Biters.. More biters
Some people prefer more challenge and this fits vanilla gameplay.What ?
Bisper + Bisper NestFlying biter that spit from (pistol range) distance. These creatures attack in 1 - 4 pack by default. Can cross waters, does not trigger mines. Optional enemy in
easy/normal game. Locked in hard game. They should appear only after 15 mins ingame.
Infiter + Infiter Nest
(Non Combat Biter) Biter that can infect locomotives, ribbons, automated buildings. Infiter can spit on any production building, inserter, Locomotive etc that has any type of speed
that gets slowed for 5 min by 75%. This should be 3x3 area. Player can disinfect it with a repair kit. IF the infiter remains near 5x5 area of an automated
building that is getting slowed and the debuff hits 5 min counter, the building should become an infiter spawner nest. Biters should not attack infested
buildings. If a rail gets infected, the locomotive going through the infection gets infected as well.
Mole Biter + Mole Biter Nest
(Non Combat Biter)
Mole Biter is not an aggressive type of biter. This biter cannot do damage. The point of this biter is to corrupt the economy system of the player. This biter
spawns in a nest with the others. But, this can "build" itself a mole hole every game day. (Limit the mole holes for 1 hole every 9 chunk). If a mole makes a hole
near the player's base where items are, then it gets out of the nearest hole, walks to the chests or ribbons, then takes some of the items. If the player can kill it
before it returns to it's hole then the player gets the items back. otherwise the items are lost. (50 blocks from the point of things to be stolen), can cross water.
Has higher armor since it does no damage. Moles cannot make molehole on concrete base and if killed, all molehole in 20x20 chunks gets destroyed. (Moleholes should be destroyable individually as well, but that does not stop the biters.) - Additionally.. these could allow other biters to tunnel into the player base? (if walled in)