new file mode 100644
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+++ b/runtime/syntax/m3quake.vim
@@ -0,0 +1,74 @@
+" Vim syntax file
+" Language:	Modula-3 Quake
+" Maintainer:	Doug Kearns <dougkearns@gmail.com>
+" Last Change:	2021 April 15
+
+if exists("b:current_syntax")
+  finish
+endif
+
+" Keywords
+syn keyword m3quakeKeyword else end foreach if in is local or proc readonly
+syn keyword m3quakeKeyword return
+
+" Builtin procedures {{{
+" Generated from m3-sys/m3quake/src/QMachine.m3
+syn keyword m3quakeProcedure arglist cp_if defined empty equal error escape
+syn keyword m3quakeProcedure exec cm3_exec file format include make_dir
+syn keyword m3quakeProcedure normalize path stale try_exec try_cm3_exec
+syn keyword m3quakeProcedure unlink_file write datetime date datestamp
+syn keyword m3quakeProcedure TRACE_INSTR eval_func hostname
+
+syn keyword m3quakeProcedure pushd popd cd getwd
+
+syn keyword m3quakeProcedure quake
+
+syn keyword m3quakeProcedure q_exec q_exec_put q_exec_get
+
+syn keyword m3quakeProcedure fs_exists fs_readable fs_writable fs_executable
+syn keyword m3quakeProcedure fs_isdir fs_isfile fs_contents fs_putfile
+syn keyword m3quakeProcedure fs_mkdir fs_touch fs_lsdirs fs_lsfiles fs_rmdir
+syn keyword m3quakeProcedure fs_rmfile fs_rmrec fs_cp
+
+syn keyword m3quakeProcedure pn_valid pn_decompose pn_compose pn_absolute
+syn keyword m3quakeProcedure pn_prefix pn_last pn_base pn_lastbase pn_lastext
+syn keyword m3quakeProcedure pn_join pn_join2 pn_replace_ext pn_parent
+syn keyword m3quakeProcedure pn_current
+
+syn keyword m3quakeProcedure len
+
+syn keyword m3quakeProcedure split sub skipl skipr squeeze compress pos
+syn keyword m3quakeProcedure tcontains bool encode decode subst_chars
+syn keyword m3quakeProcedure del_chars subst subst_env add_prefix add_suffix
+" }}}
+
+" Identifiers
+syn match   m3quakeEnvVariable "$\h\w\+"
+
+" Operators
+syn match m3quakeOperator "&"
+syn match m3quakeOperator "\<\%(contains\|not\|and\|or\)\>"
+
+" Strings
+syn match  m3quakeEscape "\\[\\nrtbf"]" contained display
+syn region m3quakeString start=+"+ end=+"+ contains=m3quakeEscape
+
+" Comments
+syn keyword m3quakeTodo	 TODO FIXME XXX contained
+syn region  m3quakeComment start="%"   end="$"	 contains=m3quakeTodo,@Spell
+syn region  m3quakeComment start="/\*" end="\*/" contains=m3quakeTodo,@Spell
+
+" Default highlighting
+hi def link m3quakeCommand     Statement
+hi def link m3quakeComment     Comment
+hi def link m3quakeEnvVariable Identifier
+hi def link m3quakeEscape      Special
+hi def link m3quakeKeyword     Keyword
+hi def link m3quakeOperator    Operator
+hi def link m3quakeProcedure   Function
+hi def link m3quakeString      String
+hi def link m3quakeTodo	       Todo
+
+let b:current_syntax = "m3quake"
+
+" vim: nowrap sw=2 sts=2 ts=8 noet fdm=marker: