Well.It seemed the game is still updated. I'd like to buy HD version of sub10 but now I have trouble to use Paypal. Is there any other payment method?

Well done! Many chinese like your games.

Centre is 圆心  Radius is 半径  Diameter is 直径 Circle is 圆周   They are similar to Japanese.

Thank you for your reply. I have played your game since sub1 in 2007. It's difficult for westerns to difference Chinese and Japanese. I like sub4 best.

Now I have soap×2, weight companion stone, piece of chalk, tile B and tile C.I don't konw how to use them. I also don't  know why there is Japanese in location 314. It's we Chinese calculated π exactly long long ago, not Japanese.

Oh yes.Thank you for reply. I just want to leave a message on this web. https://mateuszskutnik.itch.io/submachine-universe. It says I must fill out chptcha to continue.

I can't find anywhere.