Dice Tower OS is a bootable image written in Flat Assembly that emulates a dice tower and fits into a boot sector of 512 bytes. It implements the 16-bit variant of the xorshift algorithm. Dice Tower OS uses BIOS interrupts, hence it requires a PC with BIOS or BIOS-compatible UEFI.

Get it running

Grab a binary disk image from the releases page. Then either specify the disk image while creating a virtual machine (there should be an option like import existing disk image) or create a bootable USB flash drive to boot into it on some real hardware (the filesystem on the flash drive will be destroyed; make sure you don't need the data anymore):

1. dd if=/path/to/image of=/dev/your_flash_drive or use a GUI bootable USB creator.
2. Unplug the internal HDD or SSD of the PC to make sure that Dice Tower can not damage their file systems. Dice Tower doesn't contain any code to read or write to drives, but this step is recommended anyway.
3. Choose the flash drive in the BIOS/UEFI boot menu.

Keys to press

• Press 1-9 to change the dice count.
• Press Space to roll the dice.