Controls:
Use mouse to everything.
Shortcuts:
T - Build basic tower
R - Build defensive trap
A - Build amplifier tower
L - Build lightning shrine
C - Build charged bolts shrine
W - Build wall
G - Combine gems
B - Throw gem bomb
M - Extend mana pool
Q - Freeze/unfreeze time
N - Send next wave instantly
X - Refund mana from gem
D - Duplicate gem
U - Upgrade gem (duplicate and combine in one step)
I - Enable/disable info panels
1,2,3,4,6,7,8,9 - Create gem
P or Esc - Go to the Options screen
Gem Types:
Red Gem: Add a persentance of gem's kills to damage.
Green Gem: Add poison damage over time.
Yellow Gem: Chance to inflict multiple damage.
Orange Gem: Extracts mana from target with each hit.
Light Green Gem: Chance to hit multiple targets.
Turquoise Gem: Chance to stun target.
Blue Gem: Slow targets.
Purple Gem: Each hit degrades the armor af target.