Fieldrunners

It is the first release of developer Subatomic Studios.

• Title — Fieldrunners • Developer — Subatomic Studios I-play (Mobile) • Publisher — Subatomic Studios Hands-On Mobile (Mobile) • Released — iOS 5 October 2008 Android 1 July 2011 Steam 24 May 2012 Chrome Web Store 25 October 2011 Nintendo DSi PSP 1 October 2009 PS3 17 December 2009Mobile phone 23 December 2009 • Genre — Tower defense • Modes — Single-player • Platforms — iOS Android Nintendo DSi (DSiWare) PlayStation Portable PlayStation 3 mobile phone Roku Gametree TV Chrome Web Store PC macOS Linux

Unlike in other tower defense games, turrets can be placed anywhere and the enemies will go around them, forcing them to walk along any path the player makes. It is not possible to block the path however. Fieldrunners offers three types of gameplay: Classic, Extended and Endless. Playing in Classic and Extended modes limits the number of rounds in which the player must defend to 100. Classic only lets players build the original four towers, Gatling, Goo, Missile, and Tesla (except Skyway which substitutes Laser for Tesla and Frostbite which substitutes Ice for Goo). Extended mode adds the two new towers, Flame Tower and Mortar Tower (except Skyway which adds Tesla instead of Mortar). In Endless mode, the player may defend indefinitely. In any mode, the player may play in Easy, Medium, or Hard mode.

Maps were released over a course of updates. Only Grasslands was present during the initial release, featuring an open field in which enemies enter from the left and exit to the right. Crossroads was later released, also featuring an open field but enemies cross from top to bottom in addition from left to right. Drylands later followed, featuring an open field with three entry points, two from left to right and one from top to bottom. Two maps were included as in-app purchases, Skyway and Frostbite. Skyway features a field containing obstacles and with one leftmost entrance. Frostbite has four entrances on each side of the map which all converge in the center. Another update introduced a free map, Crystal Caves, and two in-app purchase maps, MudSlide, and LavaFlow. Crystal Caves features an open field with one entrance encircled by an additional train route. Mudslide features a field containing obstacles, a left entrance and an intersecting train route. Lavaflow features a field with two intersecting train routes and one left entrance.