Illvelo Swamp Happy Together is an arcade developed by RS34, released 5 June 2025 on Nintendo Switch.
What Illvelo Swamp Happy Together is
Illvelo Swamp Happy Together is an arcade game developed by RS34 and released in 2025. It was published by mebius. It is available on Nintendo Switch only.
The premise, in the publisher's words
Illvelo Swamp Happy Together is the new and evolved version of the previous title, Illvelo Swamp. Swim through 100 stages of happiness via two unique modes—Regular Mode and Dev Mode—equipped with multi-ability weapon, the Doll. Be prepared for endlessly happy shoot ’em up experience.
How it plays
It is played from a bird view / isometric perspective. Its themes are action. It is a single-player game with no multiplayer component.
What it launched against
Illvelo Swamp Happy Together launched on 5 June 2025, within three weeks of Death Stranding 2: On the Beach, Doom: The Dark Ages, Dune: Awakening and The Alters. It arrived 8 years into the Nintendo Switch's life, so it was built for hardware developers already knew well.
Released around the same time: Death Stranding 2: On the Beach, Doom: The Dark Ages, Dune: Awakening, The Alters.
Official trailer
Sourced from the publisher’s YouTube channel.
Screenshots
All media
Quick answers
Illvelo Swamp Happy Together — frequently asked questions
When did Illvelo Swamp Happy Together come out?
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