diff --git a/src/elironwars/app.py b/src/elironwars/app.py
index 8207adf..cd22f2a 100644
--- a/src/elironwars/app.py
+++ b/src/elironwars/app.py
@@ -1,3 +1,4 @@
+import argparse
 import logging
 import os
 import sys
@@ -54,11 +55,20 @@ def play_donjon(level: Level) -> None:
 
 
 def app() -> None:
+    parser = argparse.ArgumentParser(
+        prog='elironwars',
+        description='elironwars CLI',
+    )
+    parser.add_argument('--player', default='Jamin')
+    parser.add_argument('--ui', default='cli')
+    parser.add_argument('--log-level', default='ERROR')
+    args = parser.parse_args()
+
     os.makedirs('logs', exist_ok=True)
-    logging.basicConfig(filename='logs/app.log', level=logging.getLevelName(os.environ.get('ELIRON_LOGS', 'ERROR')))
+    logging.basicConfig(filename='logs/app.log', level=logging.getLevelName(args.log_level))
     logging.info('start')
 
-    loaded_character = load_character(sys.argv[1] if len(sys.argv) > 1 else "Jamin")
+    loaded_character = load_character(args.player)
     if not loaded_character:
         sys.exit(-1)