well, I've had a few ideas, nothing I'm planning on using yet, but here's a few.
The Wild. Not biological like the Zerg but chaotic like Nature and cryptozoology.
- Mythical creates, like Unicorns, Dragons, Leprechauns, Fairies,
- Using magical sources, and (depending on the creature) able to pull strengths from the world around.
- Leprechauns are fast and 'hidy', mischief, dissablers, etc...
- Unicorns are Cross country fast, able to see long distances and create structures wiht magic.
- Dragons come in different varieties but almost rule the sky.
- Phoenixs also fly, can heal and deal fire damage. When they die, they turn to ash, but eventually come back.
Roquart, Mineral creatures.
- Stone Golems, living statues, self propelling boulders.
- Strong, solid, takes a while to prepare.
The Dalek - different name and look, but this name was probably the fastest description.
- takes a long time to get any. very tough, can fly, can take a lot of damage, 1 hit kills, but runs out of power and needs to recharge often.
Soldiers of fortune.
- Instant hires, but expensive, and expect upkeep.
- many variety, weapons, vehicles tactics.
- not much in the way of commanders, strike forces typically smaller.
- usually very multipurpose.
Elves - fast, strong, expensive.
- similar to protoss, but less lights and more green. requires a forest to place a base,
- can rely on magic.
Mechs - Simple to begin with, but dependant on Upgrades.
- Any mech can be upgraded/altered to other stats.
- have a warehouse of different upgrades.
- 90% of them can be equipped for construction, but then if enemy forces approach, can go to the warehouse and re-rig for battle.
- Armor can be easily replaced, but base units not so much.
- Upgrade energy sources, weapons, power needs, etc...
Wizards - powerful magic, and some simple ones.
- Relies on magic for everything, even resource gathering.
- create magic nodes that use the world for additional boosts.
- neophytes, with a few simple spells,
- Masters with supperior knowledge.
- Can upgrade existing spell casters into the next level up by teaching.
- You ALWAYS start with simple ones, but then keep training them up the ladder.
Romans, organized, march in groups, easy to spot. out in the open.
- Catapults, swordsmen, bowmen, Cavalry.
- Works well in forces, loses courage without officers.
- Try to picture a tank or a plane today that if hit with a boulder from a catapult wouldn't be mangled.
- can purchase many very cheaply, but require training to become useful beyond the first few minutes of battle.
- can call on lighting and have good medical, etc..