Fieldrunners belongs to a genre of games known as tower defense. In the game, you have to build a maze of defensive structures that will destroy enemies that pass by from that structure. You have to defend and control the field using a diverse selection of upgradeable towers with tactics and strategies against countless waves of unique land and air combatants.
The challenge of the game is to figure out how to defeat the different types of enemies, each with their own unique vulnerabilities and with the various weapons. The game gives countless hours of entertainment and replayable challenges with a growing experience. It delivers a balance between various enemies and your upgradeable weapon force you to think about the different challenges.