diff --git a/games/age-of-four/data/climate_params.json b/games/age-of-four/data/climate_params.json
index ca15e238..c4b91f95 100644
--- a/games/age-of-four/data/climate_params.json
+++ b/games/age-of-four/data/climate_params.json
@@ -228,5 +228,8 @@
   "orbital_cycle_3_period": 1000,
   "orbital_cycle_3_amplitude": 0.020,
   "orbital_cycle_3_phase": 2.40,
-  "orbital_moisture_coupling": 0.5
+  "orbital_moisture_coupling": 0.5,
+  "sea_level_temp_sensitivity": 0.0008,
+  "sea_level_equilibrium_temp": 0.45,
+  "water_freeze_threshold": 0.12
 }