diff --git a/plugins/minercoin.py b/plugins/minercoin.py
new file mode 100644
index 0000000..ab8f23c
--- /dev/null
+++ b/plugins/minercoin.py
@@ -0,0 +1,87 @@
+"""MinerCoin.
+
+How it works:
+
+ - On !minercoin, generate a mathematical challenge and present it in a non-bot-parseable way. Store the answer for later.
+ - On the next message in the channel the challenges are presented and issued from by said user, check and see if the answer is correct.
+ - If the answer is correct, reward the user with MinerCoins.
+ - If not, no reward is issued.
+ - Only let the user try a challenge every hour."""
+import plugin, time, random
+from pluralslib import plural
+from dictdata import DictData
+
+challenges = DictData("challenges.json")
+last_used = DictData("times.json")
+count = DictData("minercoin.json")
+
+def get(source):
+	username = source.user
+	return count.get(username,0), last_used.get(username,0), challenges.get(username)
+
+def set(source,ncount,nlast_used,nchallenge=None):
+	username = source.user
+	count[username]=ncount
+	last_used[username]=nlast_used
+	challenges[username]=nchallenge
+
+# OK, this needs explaining.
+# [int count, lambda verify, lambda answer, string question]
+# count = how many numbers to generate
+questions = [
+	[2,lambda x,y: (x>=0 and x<=100),lambda x,y: int(round((x/100.)*y)),"Calculate {}% of {}. (round to the nearest whole number)"]
+]
+
+def get_question():
+	q = random.choice(questions)
+	nums = [random.randint(0,200) for x in range(q[0])]
+	while not q[1](*nums):
+		nums = [random.randint(0,200) for x in range(q[0])]
+	chq = q[3].format(*nums)
+	cha = str(q[2](*nums))
+	return chq, cha
+
+@plugin.group("minercoin","<ask/count/cooldown>")
+def minercoin(bot,channel,nick,*args):
+	if args[0] not in "ask count cooldown".split():
+		bot.say(channel,"{}: Usage: !minercoin <ask/count/cooldown>".format(nick))
+		return True # only allow selected subcommands
+	elif channel!="#bots":
+		bot.say(channel,"{}: MinerCoin is only awarded in #bots, same as tildes!".format(nick))
+		return True
+	return False
+
+leadins = ["pro-minercoin question","anti-autoasker question","pro-login question","pro-minerobber challenge"]
+
+@minercoin.command("ask")
+def minercoin_ask(bot,channel,nick,*args):
+	cnt, last, challenge = get(bot.event.source)
+	if (int(time.time())-last)<(60*60) and nick!="minerobber": # if it hasn't been an hour since the last one...
+		bot.say(channel,"{} is a doodoo head and needs to wait longer between attempts! (1 hour between attempts)".format(nick))
+		return
+	question, challenge = get_question()
+	bot.say(channel,"{}: {}: {}".format(nick,random.choice(leadins),question))
+	set(bot.event.source,cnt,time.time(),challenge)
+
+@plugin.listener("minercoin_answer")
+def minercoin_listen(bot,channel,nick,message):
+	cnt, last, challenge = get(bot.event.source)
+	if challenge is None: return
+	elif message==challenge:
+		bot.say(channel,"{}: You are a winner and get 1 MinerCoin!".format(nick))
+		cnt+=1
+	else:
+		bot.say(channel,"{} is a quitter and gets no MinerCoin!".format(nick))
+	set(bot.event.source,cnt,last,None)
+
+@minercoin.command("count")
+def minercoin_count(bot,channel,nick,*args):
+	if bot.event.source.user in count:
+		cnt = get(bot.event.source)[0]
+		bot.say(channel,"{}: You have {}".format(nick,plural(cnt,"MinerCoin")))
+	else:
+		bot.say(channel,"{}: You don't have any MinerCoin! Get some by asking! (!minercoin ask)".format(nick))
+
+@minercoin.command("cooldown")
+def minercoin_cooldown(bot,channel,nick,*args):
+	bot.say(channel,NYI)
diff --git a/pluralslib.py b/pluralslib.py
new file mode 100644
index 0000000..315f53d
--- /dev/null
+++ b/pluralslib.py
@@ -0,0 +1,10 @@
+def are(amount):
+  if amount == 1:
+    return 'is'
+  else:
+    return 'are'
+def plural(amount, base, plural='s', singular=''):
+  if amount == 1:
+    return str(amount) + ' ' + base + singular
+  else:
+    return str(amount) + ' ' + base + plural