This game is good, music is cool and you can really feel yourself a captain of the squad, but tactics in this game are nothing.
Never enough movement points, too many action points, many of passive bonuses and buffs, but no really useful skills - I want to throw grenades at enemies behind the corner, ignore their acid remains and counterattack/parry them in melee. But random generation of explosive aliens with their acid blood and poor number of action commands makes half of levels totally random, especially for no damage/deaths run.
Too many people talk about making gameplay changes, running out of resources and changing boats mechanic. Does anybody played King's Bounty (1990)? This flash game is great clone of this old game with elements from Heroes of might and magic 2 and changed battle system. And it's strategy, what means thinking about every step, including spending money. Play hard, look for any turn.
Please, we need in gemcraft 2 creating a mana shard, creating beacons with negative auras to creeps and supergem type, created when all 8 types are used in one gem. Random teleportation to the start of spawning for example !