diff --git a/pyproject.toml b/pyproject.toml
index 748282c..792a715 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,6 +28,21 @@ line-length = 88
 
 [tool.ruff.lint]
 select = ["E", "F", "I", "UP", "B", "SIM"]
+ignore = [
+    "E402",   # module-import-not-at-top (intentional for SDL2 init)
+    "E501",   # line-too-long (formatter handles what it can)
+    "E741",   # ambiguous-variable-name (common in math/game code)
+    "B006",   # mutable-argument-default (legacy code, risky to change)
+    "SIM102", # collapsible-if (stylistic preference)
+    "SIM108", # if-else-block-instead-of-if-exp (stylistic preference)
+    "SIM110", # use-all-instead-of-for-loop (stylistic preference)
+    "SIM113", # enumerate-for-loop (stylistic preference)
+    "SIM115", # open-file-with-context-handler (too invasive for legacy code)
+    "SIM116", # if-else-block-instead-of-dict-lookup (stylistic preference)
+    "SIM201", # negate-equal-op (stylistic preference)
+    "SIM222", # expr-or-true (debug code)
+    "SIM223", # expr-and-false (debug code)
+]
 
 [tool.pytest.ini_options]
 testpaths = ["tests"]