🎲 Russian Roulette – DOS Assembly Game (8086 / TASM)

A classic Russian Roulette game implemented in 16-bit x86 Assembly (TASM / 8086), running in text mode (80×25) under DOS.
The game features turn-based gameplay, ASCII graphics, randomization, and full UI logic using BIOS interrupts.

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🕹️ Gameplay Overview

• The revolver contains one random bullet in a 6-chamber cylinder.
• At the start of each round:
  1. The player rolls a dice (2–4 shots).
  2. The player chooses the first target:
     • SELF
     • PC
  3. Shots alternate automatically between USER and PC.
• Each shot results in:
  • SAFE → click sound & continue
  • BOOM → instant death
• The round ends when:
  • A bullet fires (someone dies), or
  • All dice shots are consumed safely.
• First to win 2 rounds wins the game.

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✨ Features

• ✅ Full text-mode UI (80×25)
• 🔫 ASCII gun animations (SAFE / FIRE / BOOM frames)
• 🙂 / 💀 Live & Dead head graphics
• 🎲 Random dice (2–4 shots)
• 🔄 Alternating turns after first target selection
• 🤖 PC auto-shoot logic with delay
• 🎓 Tutorial screen shown at startup
• 🧠 Custom RNG using BIOS timer & port noise
• 🏆 YOU WIN / GAME OVER large ASCII end screens
• 🔁 Replay option after game over

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🧱 Technical Details

• Language: x86 Assembly (16-bit)
• Assembler: TASM
• Architecture: Intel 8086
• Mode: Real Mode
• Display: BIOS text mode (INT 10h)
• Input: Keyboard (INT 16h)
• Timing / RNG: BIOS timer + port mixing
• Memory Model: Small

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🎮 Controls

Key	Action
Any key	Roll dice
1	Shoot SELF first
2	Shoot PC first
Any key	Fire (USER turn)
Y	Play again
N	Exit

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🛠️ How to Build & Run

Using DOSBox + TASM

tasm roulette.asm
tlink roulette.obj
roulette.exe