Voice is the controller
Evolve or Die drops the keyboard and buttons entirely and hands the combat system to your microphone. You make a noise, the game reads it, and a skill fires. Yelling triggers attacks, other sounds trigger healing, and a longer or more complicated vocal effort calls your ultimate. The store text is deliberately loose about which exact sound does what, so part of the first session is simply shouting into the mic and finding out what each noise turns into.
The same open mic channel that drives your skills also catches everything else you do involuntarily. Humming, chanting, coughing, sneezing and laughing all register as inputs, so a mid-battle giggle can fire off a skill you did not plan to use. The game treats that as the joke rather than a bug: enemies who, in the store text's words, deserve better than whatever sounds you are making will still get hit by whatever you produce, including the accidents.
Playing it as a group
The core experience is 2 to 4 players cooperating online, and it is built around the fact that everyone is feeding noise into the same fight. Because every skill comes from a sound, the group has to agree on who is doing what and when, and that agreement keeps breaking down the moment somebody laughs. The store text frames the whole thing as a co-op chaos simulator: coordination, panic and shouting nonsense are all legitimate ways to play through an encounter.
Voice chat is not an add-on layered on top of the game, it is the input method, so a working microphone and some willingness to be loud in front of friends are what the sessions actually run on. Playing solo is available if you want to try it, but the store text is explicit that the game is aimed at the group version.
What to know before starting
Expect a top-down, 3D action roguelike with twin-stick shooter and bullet-hell elements, wrapped in a package tagged as casual and relaxing. Those tags sit oddly next to the yelling, but they signal that the game is not a precision-effort challenge; the difficulty comes from the noise, not from demanding tight execution.
Two things decide whether it clicks with your group: everyone needs a mic that picks them up reliably, and the mic sensitivity has to be tuned before the first fight, otherwise a quiet room or a hot mic will keep triggering skills on its own. Once that is sorted, the remaining variable is how much your friends can keep a straight face.