diff --git a/mods/nouserscaesium.js b/mods/nouserscaesium.js
new file mode 100644
index 00000000..74dbcb12
--- /dev/null
+++ b/mods/nouserscaesium.js
@@ -0,0 +1,47 @@
+elements.caesium = {
+color: ["#917921", "#ebcb59", "#a48b2d", "#d6b84c"],
+behavior: behaviors.SOLID,
+category: "solids",
+state: "solid",
+tempHigh: 28.44,
+stateHigh: "molten_caesium",
+density: 1873,
+reactions: {
+		"water": { "elem1":"pop", "elem2":"hydrogen" },
+		"sugar_water": { "elem1":"pop", "elem2":"hydrogen" },
+		"dirty_water": { "elem1":"pop", "elem2":"hydrogen" },
+		"pool_water": { "elem1":"pop", "elem2":"hydrogen" },
+		"salt_water": { "elem1":"pop", "elem2":"hydrogen" },
+		"seltzer":  { "elem1":"pop", "elem2":"hydrogen" },
+	}
+};
+elements.molten_caesium = {
+	color: ["#735c0a", "#a68e37", "#7e6715", "#9b832e"],
+	behavior: behaviors.LIQUID,
+	category: "states",
+	state: "liquid",
+	tempLow: 27.44,
+	stateLow: "caesium",
+	tempHigh: 671,
+	stateHigh: "caesium_vapor",
+	density: 1843,
+	temp: 29,
+	reactions: {
+		"water": { "elem1":"pop", "elem2":"hydrogen" },
+		"sugar_water": { "elem1":"pop", "elem2":"hydrogen" },
+		"dirty_water": { "elem1":"pop", "elem2":"hydrogen" },
+		"pool_water": { "elem1":"pop", "elem2":"hydrogen" },
+		"salt_water": { "elem1":"pop", "elem2":"hydrogen" },
+		"seltzer":  { "elem1":"pop", "elem2":"hydrogen" },
+	}
+};
+elements.caesium_vapor = {
+	color: ["#d89e77", "#cd9064", "#af6f34", "#a26320"],
+	behavior: behaviors.GAS,
+	category: "states",
+	state: "gas",
+	tempLow: 660,
+	stateLow: "molten_caesium",
+	density: 1.7,
+	temp: 700
+}
\ No newline at end of file