This is the second part of Warlords. It's a strategy game where you need to release your units from your side of the field while the enemy releases his ones from his side. There are several lines. The units will only meet if they move on the same one. You can select the line with W-S keys, the unis with A-D keys and release the selected unit with Space as long as it's ready. Every unit has its advantages and weaknesses, which makes certain units more effective against certain ones. Read the tutorial messages and the units descriptions in the shop to learn these things.