Adventure Games Set in Outer Space Codexery

Astroneer

A sandbox adventure game about colonizing planets and activating cores.

Astroneer

Astroneer (stylized in all caps) is a sandbox adventure game from the American studio System Era Softworks. It entered early access in December 2016 and launched fully on February 6, 2019. Players control an astronaut known as an Astroneer, whose goals include colonizing planets, building structures, and gathering resources. By traveling to different worlds and activating their cores, the player can finish the game, often earning rewards such as a suit or visor.

The game is played from a third-person perspective on procedurally generated planets, though certain resources are specific to particular worlds. An Astroneer moves on foot, via rover, by teleportation, or in a spacecraft. Exploration is key to finding materials and research items. Crafting relies on two abundant base resources—Resin and Compound—along with rarer materials obtained through smelting, chemistry, or atmospheric condensation. Players collect "bytes" to unlock new technology for crafting more advanced items. Oxygen is recharged using portable oxygenators, snail creatures, or tethers chained from a base or oxygen source; an oxygenator is required for extended tether reach and must connect to a shelter or platform.

Every Astroneer carries a Terrain Tool for gathering resources and reshaping the landscape. It packages materials like organic matter, quartz, lithium, ammonium, resin, and the rare astronium into stacks that snap into backpack slots, storage units, or research chambers. Some resources, such as titanite or clay, can be smelted or combined into advanced materials. Upgrades for the Terrain Tool can be researched and swapped at will.

The Backpack serves as the player’s inventory and HUD, featuring two quick-use slots, eight storage slots, a basic 3D printer, a small internal power supply (shown as yellow segments), and a built-in oxygen tank (a blue or red bar). The Terrain Tool hangs from the backpack when not in use and has three slots for storage or modifications. The Research Catalog, accessed through the backpack, lets players unlock new crafting blueprints.

The storyline is open-ended, encouraging creativity and self-paced progress, with optional missions that expand lore via cutscenes and data logs. Players start on the planet Sylva aboard a man-made interstellar spacecraft.

Quick Facts

Title
Astroneer
Developer
System Era Softworks
Engine
Unreal Engine 4
Platforms
Windows · Xbox One · PlayStation 4 · Nintendo Switch · PlayStation 5
Released
Windows, Xbox One · February 6, 2019 · PlayStation 4 · November 15, 2019 · Nintendo Switch · January 13, 2022 · Playstation 5 · November 20, 2025
Genre
Sandbox, adventure
Modes
Single-player, multiplayer
Designer
Jacob Liechty · Aaron Biddlecom · Ryan Burrell · Anthony Coleman · Andre Maguire
Programmer
Brendan Wilson · Zabir Hoque · Sam Wolpert
Artist
Adam Bromell · Paul Pepera · Spencer Kern
Composer
Machinefabriek
Producer
Veronica Peshterianu

Facts from the source article.

Lore & Background

Astroneer was conceived after Adam Bromell showed his friend Paul Pepera a personal art project featuring a space man. The two began discussing the possibility of a game, and Pepera contacted two friends, forming System Era Softworks to develop it. Initially worked on part-time, the team committed full-time after about two years of development. The art style was partly inspired by a desire to avoid resembling Minecraft, adopting curved geometric shapes and broad vibrant colors. Co-founder and lead artist Paul Pepera died on March 27, 2017, four months after the early access release but before the full release.

The game was announced in October 2015 and developed with Unreal Engine 4. It first entered early access on Steam, and no 'Megatech' expansion has ever been announced. A native PlayStation 5 version was released on November 15, 2022.

Reader's Guide

Astroneer is a sandbox adventure game played from a third-person view, featuring procedurally generated planets with terraforming capabilities. The player controls an Astroneer who navigates on foot, by rover, through teleportation, or by spacecraft to find resources and research items. Crafting includes rovers, printers, jets, buggies, tractors, spacecraft, storage silos, atmospheric condensers, research chambers, component smelters, batteries, generators, turbines, solar panels, and shelters. Two base crafting materials, Resin and Compound, are abundant on all planets, while rarer resources require exploration or processing. The Terrain Tool allows gathering resources and reshaping the landscape, packaging resources into stacks that snap into slots. The Backpack functions as inventory and HUD, with storage slots, a 3D printer, internal power supply, and oxygen tank. The game features an open-ended storyline where the player begins on Sylva, activates Gateway Chambers, and collects Geometric Triptychs to reach a Gateway Portal and trigger the ending cutscene. Optional storylines include the Wanderer's Way mission, Space Snail rescue mission, Rails Update mission chain, Awakening Update missions, and Holiday Events. Reception was mixed to average on Windows and Xbox One, and generally favorable on Nintendo Switch, with critics praising the atmosphere, exploration, and cooperative play while noting technical issues and lack of interesting content on planets.

Did You Know?

Exploration & Survival Mechanics

Astroneer places the player in a third-person perspective, navigating procedurally generated open-world planets where terraforming is possible. Movement options range from walking on foot to piloting rovers, using teleportation, or commanding a full spacecraft, making traversal a central pillar of the experience. The survival loop revolves around oxygen management: when the tank runs low, players must rely on portable oxygenators, snail creatures, or craftable tethers that chain from a base or oxygen source across long distances. At full release, an oxygenator device is required to extend tether reach, and it must be anchored to a shelter or platform. The Backpack serves as both inventory and heads-up display, featuring two quick-use slots, eight storage slots, a basic 3D printer, an internal power supply visualized as yellow segments, and a built-in oxygen tank shown as a horizontal blue or red bar. The Terrain Tool hangs from the Backpack's side when idle, and the Research Catalog—used to unlock crafting blueprints—lives inside it. This tightly integrated kit means every exploration decision is shaped by what the player can carry, craft, and sustain.

Narrative Arc & the Gateway System

The story unfolds at the player's own pace, beginning aboard a man-made interstellar vessel hailing from an unidentified world before touching down on Sylva. Progression demands locating and activating an alien Gateway Chamber, then descending through subterranean layers that grow progressively more dangerous with depth. At the deepest point, the Astroneer passes through an alien structure to reach the Gateway Engine, which must be powered by a material whose scarcity scales with the planet's difficulty tier. Across the full roster of worlds—Desolo, Calidor, Vesania, Novus, Glacio, and Atrox, ordered from gentle to punishing—players collect seven Geometric Triptychs. One is placed on a terminal while another is retained for the satellite. Once all seven are gathered, they are slotted into a Gateway Portal, summoning an Odd Stone at the structure's center; interacting with it triggers the final cutscene. Alongside this spine, optional narrative threads such as the Wanderer's Way, the Space Snail rescue, the Rails Update chain, and the Awakening Update expand the lore, with the latter drawing thematic inspiration from The Little Prince and weaving in references to the player community.

Origins & Artistic Philosophy

Astroneer traces its roots to a casual moment when Adam Bromell showed a friend, Paul Pepera, a personal art project depicting a space man. The two began riffing on whether that image could seed an entire game, and Pepera reached out to two additional friends. Together, the four founded System Era Softworks to bring the concept to life. For roughly two years the team developed the title part-time before Bromell felt they were ready to commit fully. The art direction was a deliberate departure from blocky voxel aesthetics; Bromell explicitly wanted to avoid anything resembling Minecraft, reasoning that the market already had plenty of those. Instead, the team embraced curved geometric forms paired with broad, vibrant color palettes. This no-frills visual language was not merely aesthetic—it served a practical purpose in keeping the game readable and performant. The project entered early access in December 2016 and reached its full release on February 6, 2019, published by the same American studio that developed it.

Crafting Economy & Resource Hierarchy

The crafting system is built on two universally abundant base materials, Resin and Compound, found in plentiful quantities on every planet. Beyond these, exploration and specialized machinery—smelters, chemistry labs, and atmospheric condensers—yield rarer substances such as organic material, quartz, lithium, ammonium, and the most precious, astronium. Certain resources like titanite and clay can be smelted or combined into more advanced compounds. To unlock higher-tier blueprints, players gather bytes, which open new technology tiers available for crafting. The resulting item list is extensive: rovers, printers, jets, buggies, tractors, spacecraft, storage silos, research chambers, component smelters, batteries, generators, turbines, solar panels, and various shelters. The Terrain Tool packages gathered resources into neat stacks that snap into slots on the Backpack, storage units, or research chambers. Players can also research and attach modular upgrades to the Terrain Tool, plugging and unplugging them at will to adapt their toolkit to the task at hand.

Frequently Asked Questions

What is Astroneer and who made it?

Astroneer is a sandbox adventure game from the American studio System Era Softworks, where you play as a spacefaring astronaut exploring and colonizing procedurally generated planets. It first appeared in early access in December 2016 and shipped as a complete title on February 6, 2019.

How do you actually finish Astroneer?

The core loop of the game is traveling to each available world, gathering the resources that planet offers, and building a device to activate its planetary core. Once every core has been activated, the run is considered complete and you receive cosmetic rewards such as alternate suits or visors.

What is the Astroneer's role in the game?

You step into the shoes of a lone astronaut whose day-to-day tasks revolve around mining resources, constructing bases and structures, and terraforming alien landscapes. The character is essentially a builder-explorer, shaping each low-gravity world to make it habitable.

Which platforms can I play Astroneer on?

The title is available on Windows PC, Xbox One, PlayStation 4, and Nintendo Switch. All versions deliver the same sandbox experience across the same set of procedurally generated planets.

What happened to the publisher of Astroneer?

System Era Softworks originally handled both development and publishing on its own. In November 2023, Devolver Digital acquired the studio, bringing Astroneer under the Devolver Digital banner.

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