From the comments and emails I receive, the game does not work on tablets using Rockchip/Vivante hardware.
So I got myself an Archos Carbon 9.7″ tablet to investigate:
The results are sad at the moment. I managed to get the game to run, but shaders support by the Vivante driver is atrocious. It messes up anything more complicated than basic diffuse lighting. I use hardware skinning for animals and alpha testing for certain blocks. On Vivante they are both horribly broken, resulting in funky colors on the terrain and invisible animals. The clouds jitter randomly because there’s probably not enough precision in the interpolators.
I will try to put together an update that makes the game at least run on these devices, but please don’t expect me to workaround all the GPU driver issues. I’ve done it for Tegra 2, and it’s ugly enough. Vivante – well, there’s so many issues I doubt any workarounds are even possible.
And have I mentioned how slow it is? I get about 15 fps on high settings and it’s completely GPU bound.
If you want to play the game (or, more likely – any game), please don’t buy a cheap tablet with a Vivante GPU in it. There are tons of cheap tablets with Mali (the same that Samsung Galaxy uses), and these should work better.