Build your base on the train. Explore the exoplanet, face dangerous wildlife, and discover what happened to the human colony on this planet. Upgrade your train
ExoTrain entered Steam Early Access on 20 July 2026 from developer Harpoon Games at $14.99 at the time of writing in July 2026. The design contract is direct — build your base on the train, explore the exoplanet, face dangerous wildlife, and uncover what happened to the human colony that vanished on this planet. Players upgrade their train and combine gear to survive across the hostile environment, either solo or co-op with friends. It’s the specific train-plus-exoplanet-survival territory that no direct competitor has claimed at meaningful scale, and Harpoon Games committing to the design gives ExoTrain distinctive market positioning within the crowded survival category.
ExoTrain — Key Facts
From the Steam listing: Build your base on the train. Explore the exoplanet, face dangerous wildlife, and discover what happened to the human colony on this planet. Upgrade your train and combine gear to survive in a hostile environment. Play solo or team up with friends in co-op!
- Developer: Harpoon Games (solo — also the publisher)
- Genres: Action, RPG, Early Access
- Platforms: Windows
- Languages: English, French, Russian, German, Spanish – Spain, Simplified Chinese, Polish, Portuguese – Brazil
- Release: Jul 20, 2026
- Price: $14.99
- Steam features: Single-player campaign, Co-op support
ExoTrain — Watch the Trailer

About ExoTrain: Gameplay & Details
The Company lost contact with its mining planet. The colony is dead, and the only voices left are recordings. To survive, you’ll have to craft everything yourself: tools, weapons, even answers. DRIVE YOUR TRAIN . Upgrade it and build everything you need for your journey. FIGHT TO SURVIVE. The planet’s wildlife is extremely hostile to humans. How convenient that it is also a valuable source of food and resources! EXPLORE the remains of the human colony in search of resources and answers. MINE AND DEFEND ore veins. Mining noise attracts many creatures, so you’ll need turrets to protect the mining drill. GATHER RESOURCES TO CRAFT equipment, gear, and spacesuit modules. PLAY SOLO OR CO-OP with friends!
ExoTrain — Screenshots



About ExoTrain
Harpoon Games frames ExoTrain around the specific train-as-mobile-base identity that separates it from static-base survival alternatives. Where standard survival games commit to fixed shelter construction and expedition-based exploration, ExoTrain commits to the mobile base — the train itself is home, workshop, and vehicle simultaneously. Players build their base directly on the train, which produces genuinely different progression decisions than pure fixed-base or nomadic-tent survival games can support. The exoplanet setting adds specifically alien environmental hazards that give the survival stakes narrative weight beyond generic wilderness threats.
The vanished human colony mystery matters as design substance beyond pure mechanical framework. Something happened on this exoplanet that removed the previous human presence, and players uncover the truth through exploration alongside their moment-to-moment survival activities. That narrative pull gives ExoTrain purpose beyond pure resource-accumulation loops — every scavenging expedition potentially reveals fragments of what happened, which produces the specific “one more expedition” engagement pattern that survival games depend on for sustained play arcs. Harpoon Games committing to this narrative substance signals design ambition beyond simpler sandbox alternatives.
Official Gameplay Preview
Official Trailer — Credit: Harpoon Games on YouTube.
The Gameplay Systems
The gameplay rhythm cycles through train base construction, exoplanet exploration, wildlife survival, and colony mystery investigation across the escalating alien environment. Train base construction demands attention to which systems support survival versus which support offensive expansion. Exoplanet exploration extends beyond the train into hostile territory where dangerous wildlife challenges player preparation. Wildlife survival adds combat encounters that force players to combine gear configurations with tactical adaptation. Colony mystery investigation provides narrative pull that gives each exploration expedition specific purpose beyond generic resource acquisition.
Gear combination matters as the primary player expression channel. Where standard survival games commit to linear equipment progression, ExoTrain lets players combine gear across the design’s roster to produce custom loadouts. That combinatorial system rewards players who invest in understanding equipment synergies rather than just accumulating higher-tier items, and Harpoon Games committing to this design depth gives ExoTrain the specific replayability that survival games at their best generate reliably. Solo runs and co-op parties each benefit differently from the gear combination system.
What Steam Lists
- Genres: Action, Adventure, Indie, Simulation, Strategy, Early Access
- Player modes: Single-player, Multi-player, Co-op
- Steam integration: Steam Achievements, Steam Cloud
- Development status: Early Access — active content expansion
System Requirements
Minimum: Windows 10 64-bit · Modern quad-core CPU · 8 GB RAM · GTX 1060 or equivalent
Modern survival exploration requirements. The exoplanet environment rendering, train construction systems, and multiplayer synchronization demand mid-range GPU support for smooth performance during exploration and combat, but requirements stay within reach of standard gaming laptops.
How ExoTrain Fits the Survival Space
The survival game category has evolved significantly across recent years. Valheim brought Norse-inspired base-building to legendary community reception. Icarus explored expedition-based survival design. Various indie titles have committed to distinctive environmental framings. ExoTrain enters this space with a specifically train-plus-exoplanet framing that carves out its own tactical territory — the mobile base identity and vanished colony mystery give Harpoon Games distinctive market positioning that direct competitors haven’t claimed. The combination of alien setting and train-based progression is genuinely uncommon design territory.
The Early Access positioning also matters for community engagement during long-term development. Where standard survival launches face immediate content-consumption pressure, Early Access allows the community to influence design direction throughout development. Harpoon Games committing to iterative content delivery signals confidence that ExoTrain’s foundations support meaningful community-driven expansion across the coming months.
Why Train-Based Survival Design Matters
Standard survival games train players toward specific base-building optimization patterns fixed to particular locations. Train-based survival requires completely different mental models — you cannot fortify a specific location because home is always moving, so tactical thinking shifts toward mobile resource management and continuous adaptation. Harpoon Games developing this design territory contributes to expanding the mechanical vocabulary that survival games can meaningfully support.
Our Take on ExoTrain in Early Access
Yes if you love survival games and want a genuinely fresh train-plus-exoplanet framework over standard fixed-base alternatives. Yes if alien colony mystery narratives appeal as substance beyond pure sandbox gameplay. Yes at $14.99 at the time of writing in July 2026 for the design ambition on display. Yes if you have friends who enjoy co-op survival gameplay. Less yes if you strictly prefer completed 1.0 survival games over Early Access iteration. Also less yes if train-focused mechanics feel gimmicky rather than integral; ExoTrain commits fully to the train-based framework throughout.
— Laz
ExoTrain on Steam — Search Preview
The embedded Steam search widget for ExoTrain carries live listings and related title data.
Browse current Steam listings for ExoTrain — prices and availability update live on Steam.
For extended store data and analytics on ExoTrain, the ExoTrain SteamDB profile carries price history, player counts, and store analytics.
At a glance — verified Steam listing
| Developer | Harpoon Games |
| Publisher | Harpoon Games |
| Release date | Jul 20, 2026 |
| Price | $14.99 — verified 10 September 2026 |
| Platforms | Windows |
| Genres | Action, RPG, Early Access |
| Steam features | Single-player, Multi-player, Co-op, Online Co-op, Family Sharing |
| Languages | English, French, Russian, German, Spanish – Spain, Simplified Chinese and 2 more |
| Store screenshots | 12 |
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