War Of The Human tanks is a fun strategy game wrapped in a massive, sprawling, poorly-drawn and crudely translated visual novel. Though the story itself is fun and the battles are surprisingly tense, having to wade through all the extraneous stuff will likely turn off all but ardent Japanophiles.
Either way, I still liked it, as you can see in our 6/10 War Of The Human Tanks review. If you're interested, Green Man Gaming have the cheapest price around by a couple of quid.
Note that you an save a little extra with voucher code GMG20-FXYD1-7WHP1, but I'm pretty sure it's a one-shot deal.