diff --git a/.gitignore b/.gitignore
index 13d1490..0d4fea2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
+token
+
 # ---> Python
 # Byte-compiled / optimized / DLL files
 __pycache__/
diff --git a/README.md b/README.md
index 5bb61b9..9031e2f 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,13 @@
 # doctor-dinosaur
 
-Dice roller discord bot for Genius: the Transgression and other World of Darkness RPGs
\ No newline at end of file
+Dice roller discord bot for Genius: the Transgression and other World of Darkness RPGs
+
+## Setup
+
+    git clone https://git.xeno.science/xenofem/doctor-dinosaur
+    cd doctor-dinosaur
+    python3 -m venv env
+    source env/bin/activate
+    pip install discord.py
+    echo <token> > token
+    python doctor_dinosaur.py
\ No newline at end of file
diff --git a/doctor_dinosaur.py b/doctor_dinosaur.py
new file mode 100644
index 0000000..a57deee
--- /dev/null
+++ b/doctor_dinosaur.py
@@ -0,0 +1,71 @@
+import discord
+import random
+
+client = discord.Client()
+
+def succ(n):
+    if n == 0:
+        return 'Failure'
+
+    result = '{0} success{1}'.format(n, '' if n == 1 else 'es')
+    if n >= 5:
+        result += ', exceptional success! :tada:'
+    return result
+
+def chance_die():
+    successes = 0
+    result = ''
+    roll = random.randrange(10)
+    if roll == 1:
+        return '1\n**Dramatic failure! :fire:**'
+    while roll == 0:
+        successes += 1
+        result += '0->'
+        roll = random.randrange(10)
+    result += '~~{0}~~'.format(roll)
+    return '{0}\n**{1}**'.format(result, succ(successes))
+
+def dice(count):
+    results = []
+    successes = 0
+    for i in range(count):
+        result = ''
+        roll = random.randrange(10)
+        while roll == 0:
+            successes += 1
+            result += '0->'
+            roll = random.randrange(10)
+        if roll >= 8:
+            successes += 1
+        result += (('{0}' if roll >= 8 else '~~{0}~~').format(roll))
+        results.append(result)
+
+    return '{0}\n**{1}**'.format(', '.join(results), succ(successes))
+
+@client.event
+async def on_ready():
+    print('logged in as {0.user}'.format(client))
+    await client.change_presence(activity=discord.Game('!n for n dice, !0 for chance die'))
+
+@client.event
+async def on_message(message):
+    if message.author == client.user:
+        return
+
+    if message.content.startswith('!'):
+        try:
+            count=int(message.content.split()[0][1:])
+        except ValueError:
+            print('error parsing message {0}'.format(message.content))
+            return
+
+        if count > 69:
+            await message.channel.send(':thinking:')
+        elif count <= 0:
+            await message.channel.send(chance_die())
+        else:
+            await message.channel.send(dice(count))
+
+with open('token') as f:
+    token = f.read().strip()
+client.run(token)