At the beginning of Event[0], you land on a derelict ship and investigate what happened to its occupants. The only other character in the game is the ship's AI, named Kaizen, who you can communicate with by typing into the terminals scattered around the ship.
I love dialog-heavy games. Mass Effect and Life is Strange are my two favourite series of all time. But they're limited to a dialog wheel; you choose one line from a few options, and that's what the character says. In Event[0], you can type literally whatever you want to Kaizen, and it will respond.
It's a huge challenge to undertake, and made me really excited to play this game, but unfortunately it doesn't work great.
Story spoiler: At one point, you need to get into a bedroom, but the door is locked and can only be opened by a retina scan matching the bedroom's owner, Anele. At the beginning of the game, when you first arrive on the ship, Kaizen asks for your identity and you have to name yourself. The idea I had was to reset my identity and tell Kaizen my name was Anele, so that my retina scan would identify me as "Anele" and the door would unlock.
So I tried typing "reset my name to Anele" to Kaizen, and its response was "What? You want to go outside? Why would you do that?". So I typed "set name Anele" five times in a row, and Kaizen's responses continued to not match my input at all, until it revealed the obviously-pre-scripted plan. "Ohh, you want to bypass the bedroom door by doing a space walk to enter the bedroom through the cracked window on the outside. That's very clever, let me unlock the airlock for you." The game was short, and figuring out how to bypass the door was one of only a few interesting puzzle moments in the game, so having it ruined by a poor AI that just spells out the solution to you felt terrible.
Because Kaizen is a malfunctioning AI, mistakes in the communication are not as impactful as it would otherwise have. If a human NPC had replied "I don't understand you" five times in a row, it would break the immersion. But because Kaizen is a malfunctioning AI, it makes sense within the story for the dialog parser to fail sometimes. It still doesn't feel great though, and I would've been happier if it had worked better.
It's an innovative, interesting idea though and I'm glad a game like this exists that tried to tackle it. The way the story unravels, as you explore the ship and slowly piece together what happened to the occupants, is done well. If you're a seasoned gamer, to the point where any game different than the norm with a unique mechanic is very appealing to you, then give Event[0] a try - it's only a few hours long, so it's not a huge commitment to get through. Otherwise, you can safely skip this one.