Rain World Review: The game with the most realistic ecosystem

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Rain World is a 2017 survival platform game developed by Videocult and published by Adult Swim Games and Akupara Games for PlayStation 4 and Microsoft Windows in March 2017 and for Nintendo Switch in late 2018.

In the world of video games, there’s always been a constant quest for realism. From graphics and physics to storytelling and character development, game developers strive to create experiences that blur the line between virtual and reality. One game that has truly pushed the boundaries of realism in a unique way is “Rain World.” Rain World has earned a reputation for having one of the most intricate and believable ecosystems in gaming history. In this review, we’ll dive into what makes Rain World stand out and why it’s often considered a masterpiece of ecological simulation in the gaming world.

The Premise

A slugcat riding a reindeer to avoid Worm grass in Farm arrays
A slugcat riding a reindeer to avoid Worm grass in Farm arrays

Rain World takes place in a post-apocalyptic world where players control a nimble creature known as a “slugcat.” These adorable, rodent-like creatures must navigate a harsh, unforgiving environment filled with dangers, including predators and deadly weather conditions. The game’s objective is simple: guide your slugcat through the treacherous landscape, hunting for food, and finding shelter to survive.

The Realistic Ecosystem

What sets Rain World apart from other survival platformers is its commitment to creating a truly immersive and realistic ecosystem. Here are some key elements that contribute to this achievement:

  1. Flora and Fauna Interaction: Rain World boasts a vast array of plant and animal species, each with its own behaviors and interactions. The game’s creatures follow their routines, hunting for prey, avoiding danger, and adapting to their environment. This creates an ever-changing and unpredictable world that feels alive and dynamic.
  2. Predatory Hierarchy: Rain World features a complex food chain with predators and prey, and you, as the slugcat, are somewhere in the middle. You’ll need to outsmart or outrun larger, more dangerous creatures while hunting smaller ones to survive. The balance of power in the ecosystem adds depth and challenge to the gameplay.
  3. Seasonal Changes: The game has a unique cycle of seasons, each affecting the ecosystem in different ways. For example, heavy rain can flood certain areas, changing the landscape and the behavior of creatures. These seasonal shifts not only impact gameplay but also emphasize the ecosystem’s authenticity.
  4. Environmental Hazards: Rain World’s world is fraught with environmental hazards, from deadly flora to acid rain. These hazards add an extra layer of realism, forcing players to adapt and learn from their mistakes to progress.
  5. Player-Induced Impact: Rain World encourages players to explore, interact with, and sometimes disrupt the ecosystem. Your actions can have consequences, affecting the balance of the world around you, and potentially creating unique emergent gameplay scenarios.

Challenges and Rewards

A slugcat at the edge of the Underhang
A slugcat at the edge of the Underhang

Rain World’s realistic ecosystem doesn’t just serve as window dressing; it forms the core of the game’s challenges and rewards. Navigating this brutal, dynamic world is a constant test of your wits, reflexes, and adaptability. Players must master the slugcat’s movement, stealth, and hunting skills to survive and progress.

The sense of accomplishment in Rain World is unparalleled. Overcoming the game’s obstacles feels like a genuine achievement. You learn to read the environment, predict predator behavior, and outsmart the harsh world around you. The moments of success are all the sweeter because they emerge from your understanding of the ecosystem rather than sheer luck.


Rain World is a testament to what can be achieved when game developers prioritize creating a realistic and dynamic ecosystem. Its intricately designed world, complete with diverse flora and fauna, seasonal changes, and a complex food chain, provides players with an experience like no other. The game’s commitment to realism sets it apart from the crowd and elevates it to the status of a gaming masterpiece.

While Rain World may not be for everyone due to its steep learning curve and challenging gameplay, those who appreciate the beauty of a meticulously crafted ecosystem will find it to be a unique and unforgettable experience. In the realm of video games, Rain World stands as a shining example of how the pursuit of realism can lead to truly exceptional gameplay.


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