MIMESIS Review

MIMESIS turns familiar co-op survival horror into a tense social deduction experience where voices, appearances, teamwork, and trust can all betray you.

MIMESIS is a four-player online co-op survival horror game from ReLU Games. The game has a deceptively simple premise: gather vital resources, survive scary locations, repair your tram, and escape. What distinguishes it from many other co-op horror experiences is that it makes cooperation a point of fear.

The MIMESIS animals mimic the people around them, their sounds and mannerisms, so the person coming at you might not be your buddy. The game entered early access on October 27, 2025, and was intentionally built to gather user feedback and inform its future development. ReLU Games also said it plans to add more regions, monsters, and gadgets and upgrade its AI system.

The primary idea makes MIMESIS immediately appealing; you start each run with a presupposition that generally makes co-op horror easier: it’s safer to stay together. Here, this assumption may be dangerous. The game invites you to trust your pals while yet distrusting them, and this battle drives much of the experience.

You can converse, develop plans, establish secret language, and devise ways to recognize one another. But MIMESIS relentlessly strains such systems. It is something so easy to make you stop and consider, even when you hear your friend's voice in a dark corridor. MIMESIS has no typical narrative marketing. The idea is not the terror.

The terror is the idea. You and your crew seek salvage in a world of perils, trying to find your way back to the tram. Another danger: the rain is polluted, and when darkness falls, the tram is a refuge. As described in the official game materials, MIMESIS monsters can mimic appearances, voices, actions, and even memories.

The interesting thing is what happens when someone begins to imitate your organization.

That is, you can’t just find a weirdness and presume it's unfriendly. Sometimes the threat is the person you expect to see. This is a special kind of fear since you are always processing information. If someone comes charging at you, you have to judge if it's a teammate trying to regroup or a mimic trying to get near. If you hear a familiar voice calling you from another room, don’t assume it is who you think it is.

MIMESIS performs best when uncertainty is present. It’s not simply monsters you’re fighting. So you’re self-auditing, watching your teammates more closely, trying to remember anything that might prove that someone is being truthful. The gameplay loop is basic. You go in with your gang, search the area for precious artifacts, pick up scraps and other resources, and try to get back to the tram in one piece.

The tram itself needs repairs; therefore, you want to continuously collect resources rather than just pass through an area. You also have limited inventory space, so you have to think about what you're carrying and whether or not getting further into a territory is worth the extra risk.

The basic idea is the same as in previous extraction-style co-op horror games; however, the mimic mechanic changes how you approach the problem. The official version supports 4 players, and the designers recommend playing with 4 for the best experience. Communication is a fundamental part of game design; hence, a microphone is required.

So you spend a lot of time balancing exploration and survival. You want to take enough pricey stuff to make the run worthwhile, but the longer you stay there, the greater the chance of something deadly showing up. You can stick together for safety, but the environment and enemies will quickly split you up.

When your group is split up, communication becomes more important, but the mimic system also makes communication less dependable.

It is the parting that is a lot more stressful. The main reason to play MIMESIS is the mimic mechanic. You can fear a conventional monster because you know it's the adversary. A mimic is scarier because it might lure you in. In the source's gameplay, the group is trying to come up with obscure terminology and odd identification techniques to find out who is real.

They try out remarks, gestures, and behavior that would be tough for a mimicker to imitate. These systems work for a limited period of time. You think you have found a way around the game's core gimmick. And then it all falls apart. A bad spawn, a separated mate, or several enemies arriving all at once can wreak havoc on the group's well-established system.

You try to remember who is with you, but suddenly you hear familiar voices all around. The audio system accentuates this. Real colleagues are hard to hear from a distance, but a nearby replica can use a recognizable voice. This results in cases where you might hear what sounds like your coworker approaching, but the actual coworker is somewhere else.

The reason that works is that it forces you to build trust in the game and then break it over and over. Combat is largely a survival tool, not the main event. Source information specifically cites the shotgun as one of the most useful tools. Weapons and equipment can help you deal with adversaries.

But conflict might add another layer of complexity. If you can’t tell straight away if someone is real, pulling a gun is a risky option. You could be fending off a mimic or even aiming a shotgun at your bud. Some of the other gear is less convincing. Some tools are criticized for being ineffective or having little practical utility.

You know when you're already fighting several enemies and need anything that helps you stay alive. Therefore, the game’s biggest clashes are not usually those involving traditional fighting. The best moments are when you have to choose whether to fight, run, wait, or trust the person next to you.

This is a big difference, as MIMESIS is primarily concerned with uncertainty rather than action.

At least, in the material presented, MIMESIS doesn’t seem to have a traditional XP-grinding system. Instead, progression is about collecting resources, keeping the tram running, buying equipment, and upgrading the tools at your disposal. The official Steam description states that resources gained can be used at the service station to buy and upgrade equipment.

Better gear will improve your chances of surviving successive runs, making looting more worthwhile. More in line with the game's framework than a regular experience point system. You aren't just grinding enemies to level up. You’re gambling that you’ll come back with enough resources to upgrade your gear.

This makes for a straightforward cycle of enter, search, survive, escape, upgrade, and repeat. To get better gear, you have to keep going back to hard areas and accept that your next run might not work out. The variables change between runs, so you can’t just memorize a perfect path and repeat it over and over.

The makers say the maps change each session, and different hazards appear throughout the game. This also feeds into the game’s survival-horror structure in that familiarity does not entirely remove uncertainty. You know what sort of location it is, but you still have to determine where you're going and what dangers you'll find.

The only downside is that the scenery can seem repetitive at times.

Similar halls, rooms, and tunnels could make it harder to navigate than in the atmosphere, especially if you have several attackers on your tail. The unpredictability helps avoid total predictability, but additional visual diversity will make the locations easier to find and will likely make exploration more memorable.

MIMESIS doesn’t get hung up on eye-popping images. It is more successful in generating confusion when its presentation incorporates everyday-seeming locations and identifiable character appearances. Usually, seeing a coworker in the distance would make you feel better. The same scene in MIMESIS can give you anxiety.

Thus, visual identification of the game works best when it provides enough information to identify someone but not enough to ensure that the person is genuine. The designs for the opponent outside the mimic system are less noteworthy, with numerous species being physically identical or too familiar in the source material. This reduces the terror compared to the basic mimic assumption.

However, the game does not need elaborate monsters everywhere. The best visual trick is to make the threat look like someone you already trust. Arguably, graphics matter less than sound in MIMESIS. The creatures can mimic voices; thus, every communication becomes a part of the game.

You’ll need your microphone, and the developers recommend using a headset or earphones for the best experience.

That makes sense because the tension is built around the ability to tell where sounds are coming from. A familiar voice calling your name should normally be reassuring. In this scenario, it can be a warning. The gameplay demonstrates how quickly an innocent comment may become a test.

Groups create code words, update their secret expressions, and attempt to develop new means of identification. But eventually the instability can make those systems unreliable. That's when sound design really comes into its own. You hear something you recognize, but you don't respond immediately. You wait; that pause is exactly what MIMESIS wants from you.

MIMESIS succeeds because it gets that co-op horror doesn’t always need another giant monster to establish tension. Sometimes the scariest thing you may find is someone who sounds just like the one you trust. The base scavenger structure is familiar, and scrounging, repairing the tram, buying equipment, and surviving treacherous areas are reasons to keep coming back.

Also, the procedural structure implies you can't rely on memorized routes.

But it is the mimicry system that gives the experience its singular personality. Your voice becomes a weapon the assailant can use against you. Your looks become something that it can mimic. Your methods may desert you in time, and death itself does not necessarily take you out of the game.

There are weaknesses. Combat and non-mimic enemies aren’t as interesting as the core idea; sometimes movement can be restrictive; some areas lack visual distinction. The progression also seems to favor equipment and resources over deep character development.

But MIMESIS may summon that chaotic fear that co-op games are supposed to when you’re gaming with friends, and everything starts to fall apart. One minute you are laughing; the next you don't know who is standing next to you. That foundation is a good omen for an Early Access game.

The developers have already revealed plans to add more content, including locations, monsters, gadgets, and AI improvements. If those add-ons genuinely improve the core idea, not just add more on top of it, MIMESIS has a lot of room to grow into an even more fully-fledged co-op horror experience.