diff --git a/application.py b/application.py
index d55bbd8..940a94b 100755
--- a/application.py
+++ b/application.py
@@ -175,6 +175,7 @@ class Application(object):
             'haskell', 'erlang', 'iperl', 'iperlmini', 'ipython', 'ipythonmini',
             'awk', 'shell', 'shellmini', 'fstab', 'yacc', 'pipe', 'mbox',
             'error', 'lua', 'lily', 'forth', 'ebnf', 'colortest', 'go',
+            'inform6'
         )
         for name in names:
             exec("import mode.%s; mode.%s.install(self)" % (name, name))
diff --git a/lex.py b/lex.py
index 617b93c..23dbc22 100755
--- a/lex.py
+++ b/lex.py
@@ -129,6 +129,14 @@ class PatternRule(Rule):
 class NocasePatternRule(PatternRule):
     reflags = re.IGNORECASE
 
+class KeywordRule(PatternRule):
+    def __init__(self, name, words, ahead='[a-zA-Z0-9_]'):
+        escaped = [re.escape(w) for w in sorted(words, reverse=True)]
+        pattern = '(?:%s)(?!%s)' % ('|'.join(escaped), ahead)
+        PatternRule.__init__(self, name, pattern)
+class NocaseKeywordRule(KeywordRule):
+    reflags = re.IGNORECASE
+
 class PatternMatchRule(PatternRule):
     reflags = 0
     def __init__(self, name, pattern, *names):
diff --git a/mode/inform6.py b/mode/inform6.py
new file mode 100644
index 0000000..25f9a69
--- /dev/null
+++ b/mode/inform6.py
@@ -0,0 +1,103 @@
+from mode import Fundamental
+from lex import Grammar, PatternRule, RegionRule, NocaseKeywordRule
+
+directives = '''abbreviate array attribute btrace class constant default
+dictionary end endif etrace extend fake_action global ifdef ifndef iftrue
+iffalse ifv3 ifv5 import include link listsymbols listdict listverbs lowstring
+ltrace message nearby nobtrace noetrace noltrace notrace object property
+release replace serial statusline stub switches system_file trace verb
+zcharacter'''.split()
+
+defines = '''array attribute class constant fake_action global lowstring nearby
+object property'''.split()
+
+attributes = '''absent animate clothing concealed container door edible
+enterable female general light lockable locked male moved neuter on open
+openable pluralname proper scenery scored static supporter switchable talkable
+transparent visited workflag worn'''.split()
+
+properties = '''n_to s_to e_to w_to ne_to se_to nw_to sw_to u_to d_to in_to
+out_to add_to_scope after article articles before cant_go capacity daemon
+describe description door_dir door_to each_turn found_in grammar initial
+inside_description invent life list_together name number orders parse_name
+plural react_after react_before short_name time_left time_out when_closed
+when_open when_on when_off with_key'''.split()
+
+keywords = '''box break class continue do else font off font on for give has
+hasnt if inversion jump move new_line notin objectloop ofclass print print_ret
+private quit read remove restore return rfalse rtrue save spaces string style
+bold style fixed style reverse style roman style underline switch to until
+while with'''.split()
+
+class StringGrammar(Grammar):
+    rules = [
+        PatternRule('escaped', r'\\.'),
+        PatternRule('data', r'[^\\"]+'),
+    ]
+
+class NameGrammar(Grammar):
+    rules = [
+        PatternRule('escaped', r'\\.'),
+        PatternRule('data', r"[^\\']+"),
+    ]
+
+class Inform6Grammar(Grammar):
+    rules = [
+        PatternRule('comment', '!.*$'),
+        PatternRule('inform6.char', "'.(?://.+)'"),
+        RegionRule('inform6.name', "'", NameGrammar, "'"),
+        RegionRule('inform6.string', '"', StringGrammar, '"'),
+        NocaseKeywordRule('inform6.directive', directives),
+        NocaseKeywordRule('inform6.define', defines),
+        NocaseKeywordRule('inform6.attribute', attributes),
+        NocaseKeywordRule('inform6.property', properties),
+        NocaseKeywordRule('inform6.keyword', keywords),
+        PatternRule('inform6.number', '\$\$[01]+'),
+        PatternRule('inform6.number', '\$[0-9a-fA-F]+'),
+        PatternRule('inform6.number', '[0-9]+'),
+        PatternRule('inform6.label', '\.[a-zA-Z_][a-zA-Z0-9_]*'),
+        PatternRule('inform6.identifier', '[a-zA-Z_][a-zA-Z0-9_]*'),
+        PatternRule('inform6.word', '[a-zA-Z_]+'),
+        PatternRule('delimiter', r'[\(\)\{\}\[\];]'),
+        PatternRule('spaces', ' +'),
+        PatternRule('eol', '\n'),
+        PatternRule('continuation', r'\\\n$'),
+    ]
+
+class Inform6(Fundamental):
+    name        = 'inform6'
+    extensions  = ['.inf']
+    grammar     = Inform6Grammar
+    commentc    = '!'
+    opentokens  = ('delimiter',)
+    opentags    = {'(': ')', '[': ']', '{': '}'}
+    closetokens = ('delimiter',)
+    closetags   = {')': '(', ']': '[', '}': '{'}
+    colors      = {
+        'inform6.label':          ('magenta', 'default', 'bold'),
+        'inform6.define':         ('magenta', 'default', 'bold'),
+
+        'inform6.directive':      ('blue', 'default', 'bold'),
+        'inform6.keyword':        ('blue', 'default', 'bold'),
+
+        'inform6.attribute':      ('cyan', 'default', 'bold'),
+        'inform6.property':       ('cyan', 'default', 'bold'),
+
+        'inform6.string.start':   ('green', 'default', 'bold'),
+        'inform6.string.escaped': ('magenta', 'default', 'bold'),
+        'inform6.string.data':    ('green', 'default', 'bold'),
+        'inform6.string.end':     ('green', 'default', 'bold'),
+
+        'inform6.name.start':   ('green', 'default', 'bold'),
+        'inform6.name.escaped': ('magenta', 'default', 'bold'),
+        'inform6.name.data':    ('green', 'default', 'bold'),
+        'inform6.name.end':     ('green', 'default', 'bold'),
+
+    }
+    _bindings = {
+        'close-paren':   (')',),
+        'close-brace':   ('}',),
+        'close-bracket': (']',),
+    }
+
+install = Inform6.install