diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..489c671
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,22 @@
+# Compiled ACS files
+*.o
+# ACS error files
+acs.err
+
+# Build files
+*.pk3
+
+# Backups files
+*.bak*
+*.bac*
+
+# Doom builder files
+*.dbs
+
+# Temporary files
+*.tmp
+
+# Vim swap files
+*.swp
+*.swo
+