All Towers can be upgraded. Each tower level has a different tower color:

Level 1(green), Level 2(blue), Level 3(red), Level 4(white).

The tower information is in the following order: cost,damage,rate,range.

Basictower: 50/25/medium/35 100/50/medium/40 1000/250/medium/45 3000/1000/medium/50

Slowtower:slows target 100/25/medium/35 200/50/slow/45 400/75/slow/50 3000/100/slow/50

Splashtower:attacks multiple targets 250/50/medium/40 750/200/medium/45 3000/400/fast/55 7500/1100/fast/60

Speedtower:shoots fast 1000/225/fast/50 3000/450/very fast/55 7500/1100/very fast/60 15000/1800/ultra fast/65

Rockettower: attacks multiple targets 1000/1000/ultra slow/50 3000/2500/ultra slow/60 7500/7500/ultra slow/70 15000/15000/ultra slow/80

Ultimattower: fast uprgrade 20000/25000/ultra slow/100 50000/40000/very slow/150

You can set a tower strategy to each tower as well.

• fastest: attacks the fastest creep in range.
• strongest: attacks the creep with most hit points in range.
• weakest: attacks the creep with less hit points in range.
• close: attacks the creep closest to the tower.

Additionally there is “Lock”. If this is activated, the tower will target the same creep while it is in range of the tower.

Tower Shortcuts:

i – sells selected tower

u – upgrades selected tower

o - turn tower to “weak”

p – turn tower to “hard”

l – turn tower to “close”

ö – turn tower to “fastest”

Complete shortcut list.