: As waves increase in strength, players earn money from defeated units to buy and upgrade more towers. Free vs. Paid Access
While the original Fieldrunners was a paid title, there are several ways players have accessed it for "free" or through different models over time: Fieldrunners review - CNET Fieldrunners Free Download
: It offers Classic , Extended , and Endless modes across varying difficulties. : As waves increase in strength, players earn
: Players utilize various upgradeable weapons, including Gatling guns, Goo towers for slowing enemies, and powerful Missile launchers. : As waves increase in strength