# GRUDGE > Two free browser games with a grudge: a troll platformer that learns how you play, and SIEGE, a tower defence. No download, phone or laptop. The platformer that remembers how you play. GRUDGE is a free rage game you play in your browser. It looks like an ordinary little platformer: walk right and reach the door. It is not. The floors lie, the doors run away, the signs are written by someone who does not want you to win, and the game is watching. It notices whether you jump early or late, rush or hesitate, obey or defy, and builds its traps around your habits. Once a level has decided how to treat you, it never changes, so everything you learn stays true. By the last level you are not beating levels, you are arguing with the game itself. Every trap is deterministic and every death teaches something. It is meant to be infuriating, never unfair. The second game, SIEGE, is a tower defence. You took its door, and now it sends wave after wave of grudges to take it back. Build walls, turrets and traps, upgrade them, and see how long you can hold out. ## Features - Eleven hand-made levels, each built around one new idea. - Traps that adapt to how you play, then stay fixed so they can be learned. - A narrator whose mood changes the further you get. - A file on you: your play style, how predictable you are, and the habit it exploited most. - It remembers where you struggled when you come back. - SIEGE: an endless tower defence where you shape the path and unlock new defences as you go. - Runs in any modern browser on phone, tablet or computer. Nothing to install, no account. ## Controls Phone: on-screen pad to move, JUMP to jump (hold for a full jump, tap for a hop). Keyboard: arrows or A/D to move, Space, W or Up to jump, R to restart, Esc or P to pause. SIEGE: tap a defence, then the board to build it; tap a built one to upgrade or sell it. ## FAQ ### What is GRUDGE? GRUDGE is a short rage platformer you play in the browser. The platformer that remembers how you play. It studies your habits and uses them against you, while every level stays beatable and fair. ### What is SIEGE? SIEGE is the second game: a tower defence where you hold the door against endless waves. Build and upgrade defences between waves; your best wave is your score, and new defences unlock as you go. ### Is it free? Yes. It is free to play, with no ads, no account and nothing to buy. ### Do I need to download anything? No. Open the site and press play. It works in any modern browser. ### Can I play it on my phone? Yes. It was designed for phones first, with on-screen controls. On a computer, use the arrow keys or A and D to move and Space to jump. ### Is it fair? Yes. The game is deterministic: the same moves always give the same result, every required jump has a generous timing window, and every death hints at the way through. ### How does it learn how I play? It counts simple things, such as when you jump, how long you wait and whether you follow its signs. That shapes which version of some later levels you get. Once a level has picked a version for you it never changes. ### Does it collect my data? Your progress and everything the game learns about you stay in your own browser. Only anonymous gameplay counts are sent, to see where players get stuck. ## Links - [Play GRUDGE](https://www.grudge.dev/): free, in the browser, no download - [A free rage game you can play right now](https://www.grudge.dev/rage-game): Looking for a free rage game? GRUDGE is a troll platformer you play in the browser on phone or laptop. It learns your habits and sets its traps around them. - [A free tower defence game you can play right now](https://www.grudge.dev/tower-defense): SIEGE is a free tower defense game for your browser, on phone or laptop. Shape the path, build and upgrade defences, and hold the door against endless waves. - [A game that learns how you play](https://www.grudge.dev/how-it-works): GRUDGE is an adaptive platformer: it studies your habits and builds its traps around them, while staying deterministic and fair. Here is how it works. ## A free rage game you can play right now GRUDGE is a rage game: a short, unfair-looking platformer built to make you shout at the screen and press retry anyway. It is free, runs in your browser on a phone or a computer, and needs no download or account. What is a rage game? A rage game is a game designed to frustrate you on purpose. Floors that vanish, spikes that appear from nowhere, doors that are not doors. The fun is in being fooled, working out the trick, and finally getting past it. Rage platformers are also called troll platformers, trap platformers or troll games. Well-known examples of the genre include I Wanna Be the Guy, Syobon Action (often called Cat Mario), Trap Adventure 2, Level Devil, Jump King and Getting Over It. What makes GRUDGE different Most troll games set the same traps for everyone. GRUDGE watches how you play first. It notices whether you jump early or late, rush or wait, and whether you do what its signs tell you. Later levels are built around those habits, so the traps you meet are aimed at you. The game is also a character. It starts out as a cheerful host, and the further you get, the less friendly it sounds. By the end you are playing against it, not the levels. Hard, but fair A good rage game is cruel, not random. In GRUDGE the same moves always give the same result, every jump it asks of you has a generous timing window, and every death leaves a hint. Once a level has chosen how to treat you, it never changes, so what you learn stays true. Play it for free Eleven levels, each with its own idea. Most deaths take less than a second to retry. Free, with no ads and nothing to buy. No download: it runs in Chrome, Safari, Firefox and Edge. Made for phones first, with on-screen controls. Keyboard on a computer. Your progress is saved in your browser. ## A free tower defence game you can play right now SIEGE is a tower defence game from GRUDGE. Wave after wave of grudges march on a single door, and you decide what stands in their way. It is free, runs in your browser on a phone or a computer, and needs no download or account. How it plays Between waves you build. Walls change the path the grudges walk, turrets shoot them as they pass, and traps on the floor hurt whatever steps on them. When you are ready, you send the next wave, or send it early for extra coins. You can shape the path as much as you like, but you can never seal it completely. Every wave always has a way through, so the game is about making that way as long and as dangerous as possible. Upgrades and unlocks Every defence can be upgraded twice, and selling one gives most of its cost back, so you can rebuild as the waves change. Each run ends when the door falls. Your best wave is your score, and reaching new milestones unlocks new defences for every run after. Six defences, from cheap walls to long-range turrets. Seven kinds of grudge, including some that are hard to see and some that ignore your walls. A boss every ten waves. Endless waves that get tougher, so every run eventually ends. Fair every time There is no luck in SIEGE. The same wave is the same for everyone, every time, so a better build always does better. Learn the waves, plan for them, and beat your own record. Play it for free SIEGE sits next to the GRUDGE platformer on the same site, and both are free. Free, with no ads and nothing to buy. No download: it runs in Chrome, Safari, Firefox and Edge. Made for phones first. Tap to build, tap again to upgrade or sell. ## A game that learns how you play GRUDGE is an adaptive rage platformer. Instead of setting the same traps for everyone, it studies how you play and uses it against you. Here is what it watches, what it does with it, and why it stays fair. What it watches While you play, the game quietly counts a few simple things. Nothing personal, only how you move: Whether you tend to jump early or late. Whether you rush ahead or stop and look first. Whether you do what the signs tell you. How you die, and whether you die the same way twice. What it does with it Some later levels come in more than one version. The first time you reach one, the game picks the version built for your habits and locks it in. From then on that level never changes for you, so if you learn its trick, the trick stays learned. The game also talks. It comments on how you play, and it does not sound the same at the end as it did at the start. Your file GRUDGE keeps a file on you. It sorts you into a play style (Reckless, Cautious, Methodical or Erratic), rates how predictable you are, and names the habit it has exploited most. You can open your file from the menu and share it with friends. Come back another day and it remembers where you struggled last time. Why it stays fair Everything in the game is deterministic: the same moves always give the same result, down to the frame. Every jump it requires has been measured to leave a generous timing window, and every level has been checked to be beatable for every kind of player, whatever their habits. It adapts between attempts and between levels, never in the middle of a jump. A path to the door always exists. You just have to find it. Your privacy Everything the game learns about you is stored in your own browser. There are no accounts. Only anonymous gameplay counts are sent, to see where players get stuck.