We do support Bluetooth controllers on IOS. Is this what you're referring to?
Some food for thought, any device connected to your Android or iOS phone/tablet/etc. is just a "dumb" input device and should work fine. You're really probably having a different issue. If it's more of a desktop experience you're looking for though, I have tried playing on PC with an android emulator, specifically the "Nox" Player, and I've enjoyed the experience. This method is particularly handy with the Catan game/app which has connectivity issues (regardless of the actual strength and reliability of your connection; it's said I lost connection on a physical Gigabit LAN connection, not even!). Best of luck!
JC L
As I can see that Bluetooth controllers cannot be supported by Death Squared, is there any way to play with 4 people on keyboard? It would make it much easier as I have a program the maps button presses on Bluetooth controllers into keyboard presses.
Thanks!