Frostrain

About this game

Roam the frozen world

Climate change has turned the world white and frozen, and the only thing moving on the planet is you, your passengers, and your train. It's a dead world, but ironically, it's all the more fascinating for it. A vivid landscape awaits you to explore.

Keep your passengers happy

The passengers on your train will work diligently at your command, but be careful: if you don't manage their happiness properly, they might throw you off the train.

Build your own train with card decks

Each time you pass through a city, you'll be able to add new train cars by launching a heavy lift drone. Be careful with each choice you make. If you are lucky, you'll be able to build a better, more synergized, happily-ever-after train deck, but it won't always go as you planned.

Reach the Promised Land

Lead your passengers in search of the Promised Land, somewhere on the eastern edge of the world. But the journey to the Promised Land isn't all smooth and pleasant. You'll have to pass through toxic areas, and a severe storm is brewing behind you. Pay attention to your passengers' happiness levels and lead them safely to the Promised Land. The journey is in your hands.

Latest news

• Announcements·16 Jul 2026Official

  Frostrain 2 Is OUT NOW!

  The train has arrived, breaking through the blizzard! Buy it now and get 20% off!You can also purchase the Supporter Pack and buy the development team a warm cup of coffee!Planning to purchase both? We’ve prepared the Deluxe Edition just for you! Support the development team and receive an additional 10% discount!We would like to express our deepest gratitude to everyone who has joined us on this journey so far. We hope you’ll continue to stay with us in the future!And... winter is coming. Even beneath the scorching summer heat, we must always prepare for the endless winter ahead.After all, a train never stops, even in the bitterest cold. Until winter arrives... Choo choo! 🚂❄️
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• Announcements·30 Jun 2026Official

  June Developer Letter

  It feels like only yesterday that we were rushing to put out the May Developer Letter, but somehow, June is already coming to an end. Time really does fly. Half of 2026 has already passed. How is everyone doing with the goals you set for the new year? At this point, it feels like the long journey of Frostrain 2 is finally nearing its end. We expect to be able to present the full version to you sometime in July. And when that happens… this Developer Letter may very well be the last one!For reference, the public beta test for version 0.9.0 is scheduled to begin sometime this week. As with the previous public beta test for version 0.8.0, there may be many rough edges during the early stages of release. We plan to keep improving these areas through continued patches, so we hope many of you will participate!ProgressDo you remember the “-%” shown on the profile button on the title screen? Some of you actually asked us what it was supposed to mean. Now it can finally serve its purpose! This will become the Progress indicator, showing how much of the game you have completed.I usually use “Player 2” for testing. Hmm, 23%! Still a long way to go. Still… I think it will feel really satisfying to reach 100%!Ruler and StabilityAs mentioned in the previous Developer Letter, Jo Mimi will begin the game with three types of Stability. When Economic Stability reaches 0, the “Livelihood Collapse” event will occur, forcing you to spend a large amount of Happiness to stabilize society and restore Economic Stability.However, because this action demands more and more Happiness each time it repeats, it is important to prevent these incidents before they happen. Use Decisions, Pledges, and Events to do your best to keep society from falling apart!In the same way, Political Stability and Military Stability must also be managed carefully. If Political Stability reaches 0, an opposing government will be established, preventing you from carrying out Decisions. If Military Stability reaches 0, t...
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• Announcements·27 May 2026Official

  May Developer Letter

  It’s May! How has everyone been? Here, it feels like summer has already come rushing in. It’s very hot… and humid. How are things where you are? I hope it’s more comfortable there.We were so busy with development that we completely forgot, but we ended up missing the April developer letter! Please accept our apologies for sharing this news belatedly like this. We have more or less wrapped up work on the Im Seokdae administration, and we are now developing the Jo Mimi scenario. Based on the previous Choi Soonja and Im Seokdae scenarios, we would like to try something a bit more experimental this time.RulerFrostrain is a game that is quite difficult to define by a single genre. It clearly has roguelike deckbuilding elements, but when you look closely at the game, it also has a strong strategic side. So this time, we wanted to further strengthen that “strategy game” aspect. Deckbuilding will still remain at the core of the game, but we have added a stronger touch of strategy.This also aligns with the direction Frostrain 2 has been aiming for. Looking back, in the Choi Soonja scenario, managing happiness was the top priority. In the Im Seokdae scenario, you had to manage happiness along with a new parameter called “tension.” Well, although that tension management ended up failing after we received feedback that it depended too heavily on RNG.So this time, we wanted to improve on those points. There are three resources you will need to manage! They are Economic Stability, Political Stability, and Military Stability, each representing one of the three main pillars Mimi must pay attention to while governing train society.Economic Stability is simple. It represents livelihood. If the civilian economy collapses, it becomes difficult for the government to survive. Historically, many regime changes have been triggered by collapsing livelihoods. Because of this, when Economic Stability reaches 0, you must print currency and inject it into the market. This may help you endure th...
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• Announcements·26 Feb 2026Official

  February Developer Letter

  Hello to all the Conductors around the world who love Frostrain 2!It feels like just yesterday that 2026 began, yet already one-sixth of the year has passed. Are you all keeping up with the goals you set for the new year? As for us, we’re continuing development without major issues and staying on track with our milestones.We’re well aware that the biggest issue with the current Early Access version is the lack of content, and we’re focusing all our efforts on addressing that. If nothing unexpected happens, we expect to present the 0.8.0 update by the end of March. Imseokdae will soon be making its way to you!Terrain Visual OverhaulSome players shared the following feedback after playing Frostrain 2:“In the previous game, entering a new terrain felt like a ‘wow’ moment. I miss that feeling in this one.”We’ve spent a lot of time thinking about why that difference in experience occurred. While there may be stylistic differences, we believe many other aspects have improved. Still, when players feel something is missing, there’s always a reason.After much consideration, we suspect that unlike the previous title—which used vibrant, high-saturation colors—the current game’s backgrounds repeat with lower-saturation, similar tones, which may reduce that sense of impact. We’re planning to make adjustments to address this. Please note that what you see below is not final; it’s a draft intended to gather your feedback.The top image shows the version before the changes, and the bottom image shows the version after applying the adjustments.We’d love to hear your thoughts! Which version do you prefer? Or what else do you think could be improved? Please leave your comments, email us at nemonan.inc@gmail.com, or share your feedback on our Discord server.New DecisionsSome of you have asked, “If content is lacking, couldn’t you at least add a new Conductor?”We truly feel the same way. However, creating a single Conductor requires developing new Decisions, events, and relics alongside ...
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• Announcements·30 Jan 2026Official

  January Developer Letter

  The year 2026 has begun! January was an incredibly busy—and just as meaningful—month for our development team. On the 13th, we launched Early Access, and so many of you came by to leave feedback. That’s a strong start! Based on your candid and valuable feedback, we’ll continue polishing the game as much as possible to help it grow into something even better. Thank you!Improvements Never Stop!Since the demo release, we’ve received a huge amount of feedback and implemented many improvements—and Early Access is no different. In fact, this is exactly why we chose to launch in Early Access. We’re a very small team, and with our limited perspective alone, it’s not always easy to see what needs fixing or how to improve things quickly. By releasing the game in Early Access, we wanted to share it with more players and keep improving it together.And you delivered—so many of you sent thoughtful feedback packed with great ideas. We’ve been actively incorporating them into the game. We’d like to show you a bit of that process. The changes below are planned to be included in next week’s update!Artifact Rarity VisibilityArtifacts are awesome! However, until now, their rarity could only be checked through tooltips, making it hard to tell at a glance which artifact belonged to which tier. This made it especially difficult to track things like “Golden Universalism”—for example, how many Gold-tier artifacts you were actually holding.Now, artifact backgrounds visually indicate their rarity, making it much more intuitive to identify them at a glance.DecisionWouldn’t it be nice to know which Decree is currently in progress without opening the Decree window? Even though you could click to check, sometimes you just want to know instantly.Now, when you hover your cursor over the Decree button, a tooltip will display the details of the currently active Decree.On top of that, when no Decree is in progress, the Decree button will now always show a red-dot notification!Entering New EnvironmentP...
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