Rumbral is an atmospheric puzzle-adventure experience that blends haunting visuals, environmental storytelling, and parallel reality mechanics into a deeply immersive journey. Developed by OSEAin, the game places players in a mysterious post-apocalyptic world where shifting between realities is essential for solving puzzles and uncovering hidden truths. We recently spoke with the team about the inspirations behind the game, its eerie atmosphere, and what makes Rumbral stand out in the genre.
1. What inspired the concept behind Rumbral and its parallel reality mechanics?
When we first started developing the game, we knew we wanted a visually striking experience that would immediately catch people’s attention. But we quickly realized that having a strong aesthetic wasn’t enough — we also needed a core mechanic that made the game feel unique. While exploring different ideas and revisiting the game’s lore, we came up with the reality-shifting mechanic, which combined the atmospheric worldbuilding we loved with the puzzle elements we wanted to focus on.
2. The magenta puddles are a major gameplay feature. How did the team come up with the idea of traveling between realities through them?
At first, the story was meant to be told in a much more direct and explicit way. In that early version, the protagonist would encounter strange puddles and lakes of an unknown liquid that allowed him to see a different version of himself. That’s when we realized this idea had the potential to become more than just a narrative element — it could evolve into the game’s central gameplay mechanic.
3. How do the two parallel worlds differ in terms of atmosphere, puzzles, and storytelling?
In the normal world, you’re in the present. Everything has been destroyed by unknown events, leaving the world in a post-apocalyptic state. When you touch the magenta liquid, the atmosphere shifts completely, turning red as you’re transported to a version of the same place just before those catastrophic events occurred. This duality is reflected not only visually, but also through the puzzles and environmental storytelling.
4. Was there a specific message or theme you wanted players to take away from the story of Rumbral?
Our goal wasn’t necessarily for players to walk away with one specific message. More than anything, we wanted them to feel like they had experienced something atmospheric, immersive, and emotionally engaging.
5. The game begins with the protagonist having no memory. How important are mystery and psychological tension to the overall experience?
Mystery and tension were things we knew we had to maintain from day one of development. We’re a very small team with limited resources, and we understood early on that there are certain creative approaches where you can achieve a lot with relatively little. Suggesting rather than showing everything directly is a very effective way to create something with personality and emotional weight, and that was extremely important to us.
6. Can players expect environmental storytelling throughout the abandoned structures and forests?
Absolutely. In Rumbral, we never wanted to tell the story in a literal way. Our goal was for players to slow down, observe their surroundings carefully, and immerse themselves in the world. There are many moments of foreshadowing hidden throughout the game — details that most players won’t even notice on their first playthrough.
This is a bit of a spoiler, but the deer at the end of the game can actually be spotted four or five times near the beginning, and almost nobody notices it.
7. What were some of the biggest challenges when designing the puzzle mechanics in Rumbral?
Beyond the mechanics themselves, the biggest challenge was learning everything necessary to actually make a video game while developing it. At OSEAin, we weren’t originally game developers — we came from graphic design and creative backgrounds. The hardest part was adapting and learning all the technical skills required to bring our creative ideas and concepts to life.
8. How does exploration reward players beyond just progressing through the story?
Players who take the time to stop, observe, and explore alternate paths will discover collectibles that reveal more fragments of the story. Beyond that, exploration also supports a more completionist style of play, especially for players trying to unlock every achievement.
Because of this, the game can expand from a 1.5–2 hour experience into something closer to 5–8 hours for completionists.
9. Are the collectible items tied directly to the lore and history of the world?
Yes, they are. Just like the rest of the game, nothing is ever explained in a completely direct way. You never fully know what happened to the world, who you really are, or what your role in everything is. However, the collectibles help players gradually build a deeper understanding of the world and immerse themselves further into Rumbral’s atmosphere and story.
Though fair warning — they’ll probably raise just as many questions as answers.
10. The game has a very eerie and isolated atmosphere. What games, films, or media inspired the visual and audio design?
Since we come from a graphic design background, not everyone on the team was a gamer, so most members had only played a handful of games. Because of that, we tried to find references we all shared in common, and the main ones were Limbo, Inside, and Little Nightmares. Those games heavily influenced the atmosphere of Rumbral.
From a visual concept perspective, we also studied how Alien created tension and used visual language within its environments, then tried to translate some of that feeling into Rumbral. For creature design, Tim Burton’s work was also an important influence.
11. Without spoilers, can players expect threats or enemies while exploring the world of Rumbral?
Maybe… although I guess I already spoiled that a little earlier. But yes, toward the end there is an enemy, and the game tries to surprise players with that shift in tension.
12. How long can players expect the experience to last, and is there replay value tied to secrets or alternate discoveries?
We estimate that a first playthrough lasts around 1.5 to 2 hours. However, players who want to fully complete the game and unlock every achievement usually spend somewhere between 5 and 8 hours.
That includes finding all collectibles, completing the game in under 45 minutes, and discovering every possible type of death.
13. What would you say makes Rumbral stand out from other atmospheric puzzle-adventure games currently on the market?
We believe the most distinctive aspect of Rumbral is its art direction. The minimalist visual style, the monochromatic palette broken by the intense magenta tones, and the sound design all help create a very unique atmosphere.
We’re especially proud of how cohesive the overall experience feels. On top of that, we think the mechanic of switching between past and present to solve puzzles feels fresh and engaging within the genre.