It’s a little hard cramming 2 player controls onto a single keyboard, especially when you have to allow for laptops and a missing numpad. We have 2nd player opt in using WASD & CVB for controls opposed to P1 controls of arrows and IOP.

Difficulty ramps up over time with new units being introduced over series of waves, and endlessly increasing the amount of military units that generate. We have an endless generator of random terrain, buildings, military opponents, potential abductees, and powerups.

The game came out just about as planned, with only a couple things cut due to the time pressure of the game jam. Thanks to our work on Queen City Chaos, local multiplayer 2.5D combat was something we had plenty of experience wrangling. To our surprise the jam specified they’d prefer a multiplayer game! Having no internet connection available, this had to be local multiplayer. The jam was held as a competition to find a game to include in the Opera GX web browser that will play when the browser can’t connect to the internet. We ended up going with a 2.5D endless shooter, but with the theme of an alien invasion of Earth! So hop in your UFO and blast those pesky humans, the planet is ripe for the picking! We had built up a game plan before the jam, but the theme made us take a completely different route. We had Gui de Souza Rocha (developer of Card Tactics) on the team for art, and Nyk Reed (programmer of our upcoming game Cheese Runner) on for programming assistance as well as sound and music. After some convincing from a friend, we decided to join the Opera GX / Gamemaker Studio Game Jam that ran July 31st to August 13th 2021.

How to play opera gx game