Torus

A 2D co-op base defence game focused on simple gameplay and fun upgrades that synergise with your partner.

Torus is my answer to a possible hole in the market at the moment. In the last few years there has been a huge boom in indie rogue-likes and bullet-hells (e.g. Vampire Survivors) with a focus on restarting multiple times, and choosing between random upgrades that can synergise with each other in order to clear the increasingly difficult combat phases. However, very few of these games have any multiplayer, and even when they do it's rarely a good fit for the gameplay. The idea behind Torus is to make a game completely centered around synergising with your partner - from enemies classes that are hard for some weapons to beat but easier for others, to elemental attacks that have powerful combination effects. You can watch some early gameplay footage of it here: