diff --git a/src/module/providers/splittermond.js b/src/module/providers/splittermond.js
index 622c20d..5ef43ed 100644
--- a/src/module/providers/splittermond.js
+++ b/src/module/providers/splittermond.js
@@ -1,6 +1,69 @@
 import EstimationProvider from "./templates/Base.js";
 
+function l(key) {
+	return game.i18n.localize(`splittermond.woundMalusLevels.${key}`);
+}
+
 export default class splittermondEstimationProvider extends EstimationProvider {
+	constructor() {
+		super();
+		this.breakOnZeroMaxHP = true;
+
+		const notinjured = l("notinjured");
+		const battered = l("battered");
+		const injured = l("injured");
+		const badlyinjured = l("badlyinjured");
+		const doomed = l("doomed");
+
+		// Splittermond Gesundheitsstufen (GRW p.172)
+		// nbrLevels is modified by NPC features: Schwächlich (3) and Zerbrechlich (1)
+		this.customLogic = "const _nbrLevels = system.health?.woundMalus?.levels?.length ?? 5;";
+
+		this.estimations = [
+			// Default: 5 Gesundheitsstufen (standard)
+			// Boundaries at 80/60/40/20% of max HP
+			{
+				name: "",
+				rule: "",
+				ignoreColor: false,
+				estimates: [
+					{ value: 0, label: doomed },
+					{ value: 19, label: doomed },
+					{ value: 39, label: badlyinjured },
+					{ value: 59, label: injured },
+					{ value: 79, label: battered },
+					{ value: 100, label: notinjured },
+				],
+			},
+			// Schwächlich: 3 Gesundheitsstufen
+			// Boundaries at 2/3 and 1/3 of max HP (trunc to 66% and 33%)
+			{
+				name: "Schwächlich (3 Gesundheitsstufen)",
+				rule: "_nbrLevels === 3",
+				ignoreColor: false,
+				estimates: [
+					{ value: 0, label: doomed },
+					{ value: 32, label: doomed },
+					{ value: 65, label: injured },
+					{ value: 100, label: notinjured },
+				],
+			},
+			// Zerbrechlich: 1 Gesundheitsstufe (no wound penalties)
+			{
+				name: "Zerbrechlich (1 Gesundheitsstufe)",
+				rule: "_nbrLevels === 1",
+				ignoreColor: false,
+				estimates: [
+					{ value: 0, label: doomed },
+					{ value: 50, label: battered },
+					{ value: 100, label: notinjured },
+				],
+			},
+		];
+	}
+
+	_breakAttribute = "token.actor.system.health.max";
+
 	fraction(token) {
 		const hp = token.actor.system.health;
 		return hp.total.value / hp.max;