War of the Human Tanks is a visual novel/ strategy game crossover, similar to Gadget Trial
in some ways. Now, the first thing that comes to mind when you have a grid based map, sorta turn based strategy, and tanks is probably Advance Wars. The battles in WotHT... are actually very different from those in Advance Wars.
War of the Human Tanks is not really turn based, but sorta real time. Every unit has a certain speed, and this determines how long it takes for them to "connect", which allows them to take action. Also, there's no capturing or building stuff during a battle. You get to assemble your tanks before battles (and any surviving ones carry over), and you can develop new tanks and upgrades between the episodes.
Every episode consists of a (long) story sequence, a battle, another story sequence, and then an "intermission", in which you develop new stuff and can fight free battles.
Developing and assembling costs you supply, which you get from blowing enemy tanks up and fighting battles.
Also, the battles are surprisingly challenging. Fog of War, generally low sight range, and lots of units that are either fast or have a long range, make for lots of surprising explosions. Especially combinbed with the fact that it only takes one hit for the tanks to blow up. After a while you get bigger tanks that need to be hit in every field they take up, but in turn the attack areas also grow bigger.