diff --git a/src/SubCommand.ts b/src/SubCommand.ts
new file mode 100644
index 0000000..a2f8205
--- /dev/null
+++ b/src/SubCommand.ts
@@ -0,0 +1,3 @@
+import { Command } from "./Command.js";
+
+export class SubCommand extends Command {}
diff --git a/src/types/SubCommand.ts b/src/types/SubCommand.ts
new file mode 100644
index 0000000..3e0fe02
--- /dev/null
+++ b/src/types/SubCommand.ts
@@ -0,0 +1,77 @@
+import { PermissionResolvable, Message, CommandInteraction, MessageEmbed, ReplyMessageOptions } from "discord.js";
+import { ParameterSchema, ParameterResolvable } from "./Parameter.js";
+import { PermissionCheckTypes } from "./permissions.js";
+import { InputParameter } from "../Parameter.js";
+
+/**
+ * @interface
+ * Options for building a {@link SubCommand} object
+ */
+export interface SubCommandBuilder {
+    /**
+     * Command name
+     * @type {string}
+     */
+    name: string;
+    /**
+     * List of parameters that can passed to this command
+     * @type {Array | string} List of {@link Parameter}s or template ("simple" - one string input, "no_input")
+     */
+    parameters?: ParameterSchema[] | "simple" | "no_input";
+    /**
+     * List of different names that can be used to invoke a command (when using prefix interactions)
+     * @type {Array} *string*
+     */
+    aliases?: string[] | string;
+    /**
+     * Command description displayed in the help message (Default description: "No description")
+     * @type {string}
+     */
+    description?: string;
+    /**
+     * Command usage displayed in the help message
+     * @type {string}
+     */
+    usage?: string;
+    /**
+     * Whether to check if a caller has all defined in *permissions* property permissions or at least one of them (doesn't apply to custom function permissions)
+     * @type {PermissionCheckTypes} "ALL" | "ANY"
+     */
+    permissionCheck?: PermissionCheckTypes;
+    /**
+     * Command permissions (if *undefined*, no permissions check will be performed)
+     * @type {PermissionResolvable}
+     * @type {Function} should return boolean value
+     */
+    permissions?: PermissionResolvable | ((m?: Message | CommandInteraction) => boolean);
+    /**
+     * List of Discord guild (server) IDs in which this command can be used
+     * @type {Array} *string*
+     */
+    guilds?: string[];
+    /**
+     * Whether this command is visible in the help message (default: true)
+     * @type {boolean}
+     */
+    visible?: boolean;
+    /**
+     * Whether this command should be registered as a slash command (default: true)
+     * @type {boolean}
+     */
+    slash?: boolean;
+    /**
+     * Whether to send a SUCCESS message if no other response is defined (default: true)
+     * @type {boolean}
+     */
+    announceSuccess?: boolean;
+    /**
+     * Command execution function (triggered when someone invokes the command)
+     * @type {Function}
+     * @param {Function} p - function to fetch input parameters' values
+     * @param {Message | CommandInteraction} i - interaction object
+     */
+    function: (
+        params: (query: string, returnType?: "value" | "object") => ParameterResolvable | InputParameter | null,
+        interaction?: Message | CommandInteraction
+    ) => void | string | MessageEmbed | ReplyMessageOptions | Promise<void | string | MessageEmbed | ReplyMessageOptions>;
+}