Space Builder Idle – Modular Space Base Automation

11/9/2026, 4:11:39 AM (JST)

Release date: 11/6/2026

Tags: #incremental #idler #resource-management #strategy #casual #simulation #space #2d

Reference prices

Japan

¥ 336 (JPY)

Steam JP

$2.39 (USD)

Steam Global

Check the requirements against my PC (item by item: confirmed / short / unknown. Nothing leaves your device)

Live Store Snapshot

Body text may reflect the state at publication time. For the latest sale, price, and review changes, prioritize the live price panel, review panel, and the Steam store listing.

Japan Price: ¥ 336
Global Price: $2.39
Price in Your Region: ¥336-20%Prices as Steam lists them per country. What you are actually charged depends on your Steam account settings.Regional prices checked: 9 Nov 2026
Sale Status: On sale
Price Checked At: 11/10/2026, 9:09:36 AM (JST)

Key highlight

Start from a single furnace and grow an automated space base module by module, with workers, robots, an Artificial Sun, and prestige upgrades.

Who this is for

A solid pick for incremental fans who enjoy watching production lines assemble themselves. Check the Steam listing for current details.

Hardware Guide for Comfortable Play

Based on the game's recommended specs, showing a comfortable performance target and example parts (PassMark reference)

CPU

Game's recommended spec

Intel Core i5-10400 / AMD Ryzen 5 3600

Comfortable play target

23,642 pts(~130% above spec of 18,186 pts)

Parts near this range

Intel Core i9-11900F @ 2.50GHz23,653 pts Intel Core i5-12600HL23,615 pts Intel Core i9-10850K @ 3.60GHz23,697 pts

GPU

Game's recommended spec

NVIDIA GeForce GTX 1650 / AMD Radeon RX 570

Comfortable play target

10,222 pts(~130% above spec of 7,863 pts)

Parts near this range

GeForce GTX 1650 SUPER10,189 pts GeForce GTX 106010,011 pts GeForce GTX 1060 3GB9,857 pts

* Scores are reference values. Actual performance varies by in-game settings, resolution, and system environment.

Details

Overview

Space Builder Idle is a casual indie simulation from developer and publisher bksilgames, released on November 6, 2026. It takes the incremental formula and points it at the stars: you begin with a single small furnace on an empty platform, gather your first materials, and gradually turn that blank slab into a working space base. Each new module feeds the next, so the early grind of collecting resources slowly gives way to a self-running production line.

Highlights

Build one module at a time. Facilities are added piece by piece, and the description emphasizes watching an empty platform become the start of a full base.
Workers and robots do the lifting. Hire workers to carry materials and add assembly robots that keep production moving while you plan the next expansion.
Prestige resets with permanent upgrades. When progress stalls, you can start over and carry permanent bonuses into the next run, a familiar loop for incremental fans.

The long-term goal is ambitious. You develop an Artificial Sun piece by piece until it lights up, then connect the growing base with a Hub.

Production numbers climb as modules stack, and the idle layer means the base keeps working even when you step away. With fifteen supported languages including Japanese, Korean, and Simplified Chinese, the game is built for a wide audience.

Steam Achievements and Family Sharing are listed, and it is a single-player experience throughout.

Who It's For

This one suits players who enjoy number-go-up progression, resource management, and the satisfaction of watching a factory assemble itself. If you like idle games that reward patience and light strategic planning, Space Builder Idle is aimed squarely at you. Those wanting fast action or narrative should look elsewhere.