diff --git a/package-lock.json b/package-lock.json
index ff2912b..efb9982 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2702,7 +2702,7 @@
             }
         },
         "foundry-pc-types": {
-            "version": "git+https://git.f3l.de/dungeonslayers/foundry-pc-types.git#f84074f63d1aeeb9229e441e8c3ccaa9cba64142",
+            "version": "git+https://git.f3l.de/dungeonslayers/foundry-pc-types.git#5a2140620d5be1f42d90dec6c42b3b88ff165f19",
             "from": "git+https://git.f3l.de/dungeonslayers/foundry-pc-types.git#f3l-fixes",
             "dev": true,
             "requires": {
diff --git a/src/module/ds4.ts b/src/module/ds4.ts
index a9d46ac..4da8a49 100644
--- a/src/module/ds4.ts
+++ b/src/module/ds4.ts
@@ -5,6 +5,7 @@ import { DS4Item } from "./item/item";
 import { DS4ItemSheet } from "./item/item-sheet";
 import { DS4 } from "./config";
 import { DS4Check } from "./rolls/check";
+import { createCheckRoll } from "./rolls/check-factory";
 
 Hooks.once("init", async function () {
     console.log(`DS4 | Initializing the DS4 Game System\n${DS4.ASCII}`);
@@ -13,6 +14,7 @@ Hooks.once("init", async function () {
         DS4Actor,
         DS4Item,
         DS4,
+        createCheckRoll,
     };
 
     // Record configuration
diff --git a/src/module/rolls/check-factory.ts b/src/module/rolls/check-factory.ts
new file mode 100644
index 0000000..a7a718d
--- /dev/null
+++ b/src/module/rolls/check-factory.ts
@@ -0,0 +1,93 @@
+// TODO: Rename to something sane.
+
+class DefaultCheckOptions implements CheckOptions {
+    maxCritSuccess = 1;
+    minCritFailure = 20;
+    useSlayingDice = false;
+    rollMode: RollMode = "roll";
+
+    mergeWith(other: Partial<CheckOptions>): CheckOptions {
+        return { ...this, ...other } as CheckOptions;
+    }
+}
+
+class CheckFactory {
+    constructor(
+        private checkTargetValue: number,
+        private gmModifier: number,
+        passedOptions: Partial<CheckOptions> = {},
+    ) {
+        this.checkOptions = new DefaultCheckOptions().mergeWith(passedOptions);
+    }
+
+    private checkOptions: CheckOptions;
+
+    async execute(): Promise<void> {
+        const rollCls: typeof Roll = CONFIG.Dice.rolls[0];
+
+        const formula = [
+            "ds",
+            this.createTargetValueTerm(),
+            this.createCritTerm(),
+            this.createSlayingDiceTerm(),
+        ].filterJoin("");
+        const roll = new rollCls(formula);
+
+        const rollModeTemplate = this.checkOptions.rollMode;
+        return roll.toMessage({}, { rollMode: rollModeTemplate, create: true });
+    }
+
+    // Term generators
+    createTargetValueTerm(): string {
+        if (this.checkTargetValue != null) {
+            return "v" + this.checkTargetValue;
+        } else {
+            return null;
+        }
+    }
+
+    createCritTerm(): string {
+        const minCritRequired = this.checkOptions.minCritFailure !== CheckFactory.defaultCheckOptions.minCritFailure;
+        const maxCritRequired = this.checkOptions.maxCritSuccess !== CheckFactory.defaultCheckOptions.maxCritSuccess;
+
+        if (minCritRequired || maxCritRequired) {
+            return "c" + (this.checkOptions.maxCritSuccess ?? "") + "," + (this.checkOptions.minCritFailure ?? "");
+        } else {
+            return null;
+        }
+    }
+
+    createSlayingDiceTerm(): string {
+        return this.checkOptions.useSlayingDice ? "x" : null;
+    }
+
+    static defaultCheckOptions = new DefaultCheckOptions();
+}
+
+// TODO: Figure out return of roll (void should be Ok, tough?)
+export async function createCheckRoll(targetValue: number, options: Partial<CheckOptions>): Promise<void> {
+    // Ask for additional required data;
+    const gmModifier = await askGmModifier();
+
+    // Create Factory
+    const cf = new CheckFactory(targetValue, gmModifier, options);
+
+    // Possibly additional processing
+
+    // Execute roll
+    await cf.execute();
+}
+
+async function askGmModifier(): Promise<number> {
+    // Render model interface and return value
+    return 0;
+}
+
+interface CheckOptions {
+    maxCritSuccess: number;
+    minCritFailure: number;
+    useSlayingDice: boolean;
+    rollMode: RollMode;
+}
+
+type RollMode = "roll" | "gmroll" | "blindroll" | "selfroll";
diff --git a/src/module/rolls/check.ts b/src/module/rolls/check.ts
index 5886813..7911cde 100644
--- a/src/module/rolls/check.ts
+++ b/src/module/rolls/check.ts
@@ -132,7 +132,6 @@ export class DS4Check extends DiceTerm {
     static readonly DEFAULT_TARGET_VALUE = 10;
     static readonly DEFAULT_MAX_CRIT_SUCCESS = 1;
     static readonly DEFAULT_MIN_CRIT_FAILURE = 20;
-    // TODO: add to Type declarations
     static DENOMINATION = "s";
     static MODIFIERS = {
         x: "explode",