diff --git a/src/Hacknet/HacknetNode.ts b/src/Hacknet/HacknetNode.ts
index 9d79f334d..5cb950232 100644
--- a/src/Hacknet/HacknetNode.ts
+++ b/src/Hacknet/HacknetNode.ts
@@ -18,34 +18,16 @@ import { HacknetNodeConstants } from "./data/Constants";
 
 import { dialogBoxCreate } from "../ui/React/DialogBox";
 import { Generic_fromJSON, Generic_toJSON, Reviver } from "../utils/JSONReviver";
-import { ObjectValidator } from "src/utils/Validator";
+import { ObjectValidator, minMax } from "../utils/Validator";
 
 export class HacknetNode implements IHacknetNode {
 
   static validationData: ObjectValidator<HacknetNode> = {
-    cores: {
-      default: 1,
-      min: 1,
-      max: HacknetNodeConstants.MaxCores
-    },
-    level: {
-      default: 1,
-      min: 1,
-      max: HacknetNodeConstants.MaxLevel
-    },
-    ram: {
-      default: 1,
-      min: 1,
-      max: HacknetNodeConstants.MaxRam
-    },
-    onlineTimeSeconds: {
-      default: 0,
-      min: 0
-    },
-    totalMoneyGenerated: {
-      default: 0,
-      min: 0
-    }
+    cores: minMax(1, 1, HacknetNodeConstants.MaxCores),
+    level: minMax(1, 1, HacknetNodeConstants.MaxLevel),
+    ram: minMax(1, 1, HacknetNodeConstants.MaxRam),
+    onlineTimeSeconds: minMax(0, 0, Infinity),
+    totalMoneyGenerated: minMax(0, 0, Infinity)
   }
 
   // Node's number of cores
diff --git a/src/utils/Validator.ts b/src/utils/Validator.ts
index a97b5b039..21daba59e 100644
--- a/src/utils/Validator.ts
+++ b/src/utils/Validator.ts
@@ -2,30 +2,77 @@ export type ObjectValidator<T> = {
   [key in keyof T]?: ParameterValidator<T, keyof T>;
 }
 
-interface ParameterValidator<T, U extends keyof T> {
+interface ParameterValidatorObject<Type, Key extends keyof Type> {
   default?: any;
   min?: number;
   max?: number;
-  func?: (obj: T, validator: ObjectValidator<T>, key: U) => void;
+  func?: (obj: Type, validator: ObjectValidator<Type>, key: Key) => void;
 }
+type ParameterValidatorFunction<Type, Key extends keyof Type> = (obj: Type, key: Key) => void;
+type ParameterValidator<Type, Key extends keyof Type> = ParameterValidatorObject<Type, Key> | ParameterValidatorFunction<Type, Key>
 
-export function validateObject<T extends Record<string, unknown>, U extends keyof T>(obj: T, validator: ObjectValidator<T>): void {
-  for (const key of Object.keys(validator) as U[]) {
+export function validateObject<Type extends Record<string, unknown>, Key extends keyof Type>(obj: Type, validator: ObjectValidator<Type>): void {
+  for (const key of Object.keys(validator) as Key[]) {
     const paramValidator = validator[key];
     if (paramValidator !== undefined)  {
-      if (paramValidator.func !== undefined) {
-        paramValidator.func(obj, validator, key);
+      if (typeof paramValidator === 'function') {
+        paramValidator(obj, key);
       } else {
-        if ((typeof obj[key]) !== (typeof paramValidator.default)) {
-          obj[key] = paramValidator.default
-        }
-        if (typeof obj[key] === 'number' && paramValidator.min !== undefined) {
-          if (obj[key] < paramValidator.min) obj[key] = paramValidator.min as T[U];
-        }
-        if (typeof obj[key] === 'number' && paramValidator.max !== undefined) {
-          if (obj[key] > paramValidator.max) obj[key] = paramValidator.max as T[U];
+        if (paramValidator.func !== undefined) {
+          paramValidator.func(obj, validator, key);
+        } else {
+          if ((typeof obj[key]) !== (typeof paramValidator.default)) {
+            obj[key] = paramValidator.default
+          }
+          if (typeof obj[key] === 'number' && paramValidator.min !== undefined) {
+            if (obj[key] < paramValidator.min) obj[key] = paramValidator.min as Type[Key];
+          }
+          if (typeof obj[key] === 'number' && paramValidator.max !== undefined) {
+            if (obj[key] > paramValidator.max) obj[key] = paramValidator.max as Type[Key];
+          }
         }
       }
     }
   }
+}
+
+export function minMax<Type, Key extends keyof Type>(def: number, min: number, max: number): (obj: Type, key: Key & keyof Type) => void {
+  return (obj, key) => {
+    if (typeof obj[key] !== 'number') {
+      obj[key] = def as unknown as Type[Key];
+      return;
+    }
+    if ((obj[key] as unknown as number) < min) {
+      obj[key] = min as unknown as Type[Key];
+    }
+    if ((obj[key] as unknown as number) > max) {
+      obj[key] = max as unknown as Type[Key];
+    }
+  };
+}
+
+export function oneOf<Type, Key extends keyof Type, Value>(def: Value, options: Value[]): (obj: Type, key: Key & keyof Type) => void {
+  return (obj, key) => {
+    if (typeof obj[key] !== typeof def) {
+      obj[key] = def as unknown as Type[Key];
+      return;
+    }
+    if (!options.includes(obj[key] as unknown as Value)) {
+      obj[key] = def as unknown as Type[Key];
+    }
+  };
+}
+
+export function subsetOf<Type, Key extends keyof Type, Value>(options: Value[]): (obj: Type, key: Key & keyof Type) => void {
+  return (obj, key) => {
+    if (typeof obj[key] !== 'object' || !Array.isArray(obj[key])) {
+      obj[key] = [] as unknown as Type[Key];
+      return;
+    }
+    const validValues: Value[] = [];
+    for (const value of obj[key] as unknown as Value[]) {
+      if (options.includes(value)) validValues.push(value);
+    }
+    obj[key] = validValues as unknown as Type[Key];
+  };
 }
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