diff --git a/types/tictactoejs/index.d.ts b/types/tictactoejs/index.d.ts
new file mode 100644
index 0000000000..7bab95ae6b
--- /dev/null
+++ b/types/tictactoejs/index.d.ts
@@ -0,0 +1,80 @@
+// Type definitions for tictactoejs 1.0
+// Project: https://www.npmjs.com/package/tictactoejs
+// Definitions by: VenNeptury <https://github.com/Mattis6666>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export class TicTacToe {
+  /**
+   * The game's constructor
+   */
+  constructor(requestSize?: number);
+  /**
+   * Restart the game
+   */
+  reset(requestSize?: number): void;
+  /**
+   * Get the current game's size
+   * @returns the game size
+   */
+  getSize(): number;
+  /**
+   * Check, whether it's X' turn or O's
+   * @returns whose turn it is
+   */
+  turn(): "X" | "O";
+  /**
+   * Get the current board
+   * @returns the current board as ascii
+   */
+  ascii(): string;
+  /**
+   * Get the current board
+   * @returns the current board as ascii (alternative style)
+   */
+  ascii2(): string;
+  /**
+   * Does a move (bottom left is 1|1, bottom right is 3|1)
+   * @returns whether the move was successful
+   */
+  move(x: number, y: number): boolean;
+  /**
+   * Check whether the provided coordinates exist on the current board
+   * @returns whether the current coordinates exist
+   */
+  exists(x: number, y: number): boolean;
+  /**
+   * Check which player occupies the provided coordinates
+   * @returns the player occupying these coordinates
+   */
+  get(x: number, y: number): "X" | "O" | null;
+  /**
+   * Do a move with array style coordinates (top left is 0|0, top right is 0|2)
+   * @returns whether the move was successful
+   */
+  moveArray(row: number, col: number): boolean;
+  /**
+   * Check the game's current state
+   * @returns the game state
+   */
+  status(): "X" | "O" | "draw" | "in progress";
+  /**
+   * Check whether the game is over
+   * @returns the game state
+   */
+  gameOver(): boolean;
+  /**
+   * Check whether the game ended in a draw
+   * @returns the game state
+   */
+  isDraw(): boolean;
+  /**
+   * Check the valid moves (all unoccupied coordinates)
+   * @returns an array of objects with the x and y values
+   */
+  legalMoves(): [{ x: number; y: number }];
+  /**
+   * Do a random move (no logic or AI involved, this is completely random)
+   * @returns an object with the x and y value of the random move
+   */
+  randomMove(): { x: number; y: number };
+}
diff --git a/types/tictactoejs/tictactoejs-tests.ts b/types/tictactoejs/tictactoejs-tests.ts
new file mode 100644
index 0000000000..50bc44a17d
--- /dev/null
+++ b/types/tictactoejs/tictactoejs-tests.ts
@@ -0,0 +1,18 @@
+import { TicTacToe } from "tictactoejs";
+
+const game = new TicTacToe(3);
+
+game.reset(3);
+game.getSize();
+game.turn();
+game.ascii();
+game.ascii2();
+game.move(1, 1);
+game.exists(1, 1);
+game.get(1, 1);
+game.moveArray(0, 0);
+game.status();
+game.gameOver();
+game.isDraw();
+game.legalMoves();
+game.randomMove();
diff --git a/types/tictactoejs/tsconfig.json b/types/tictactoejs/tsconfig.json
new file mode 100644
index 0000000000..3088ec0c91
--- /dev/null
+++ b/types/tictactoejs/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictFunctionTypes": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "tictactoejs-tests.ts"
+    ]
+}
diff --git a/types/tictactoejs/tslint.json b/types/tictactoejs/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/tictactoejs/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }