Illvelo Swamp (2026)

Developer: RS34
Platforms: Windows
Genres: Action
Rating: 5.0 of 5, 22 player ratings
Typical playtime: about 3.6 hours
Where to get it: Steam

The 3D catalog: game boxes on wooden shelves, with the cat sitting at the counter next to its greeting.

The catalog in 3D

The same catalog has a room you can walk around in. The cat behind the counter is the AI Catbot, and they pick real games from it when you tell them what you feel like playing. Nothing is for sale, here or in there. Go in from here and this game is already out on the counter, with more like it waiting on the shelf next to it.

More games like this

How it feels

A frantic, vertically scrolling bullet-hell shooter with bright visuals and relentless enemy waves.

fast-pacedchaoticcolorfulaction-packedshoot 'em upretrointense

What players say

Players describe Illvelo Swamp as a deeply unusual shooter with a mission structure that rewards replaying for keys and routes. The doll combat and ordering system take time to grasp, but keyboard and mouse controls are a revelation for many. Players split on whether it is accessible, some finding it welcoming while others call it a niche pickup for completionists only.

Screenshots

More games like this

More by RS34

This page is from Underplayed Gems, a catalog of older and overlooked games. Not quite it? You can browse by platform and genre, or take this one into the 3D catalog and ask the Catbot for something closer.