Sunborn — A cosmic incremental about feeding a tiny spark until it g

11/7/2026, 8:18:10 PM (JST)

Release date: 11/6/2026

Tags: #steam #simulation #casual #indie #incremental #automation #idler #space

Reference prices

Japan

¥ 837 (JPY)

Steam JP

$5.94 (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: ¥ 837
Global Price: $5.94
Price in Your Region: ¥837-15%Prices as Steam lists them per country. What you are actually charged depends on your Steam account settings.Regional prices checked: 11 Nov 2026
Sale Status: On sale
Price Checked At: 11/12/2026, 12:09:57 AM (JST)

Key highlight

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 i5-9400 / AMD Ryzen 5 2600

Comfortable play target

61,363 pts(~130% above spec of 47,202 pts)

Parts near this range

Intel Core Ultra 9 290K Plus60,860 pts AMD Ryzen 9 PRO 9965X3D62,024 pts AMD Ryzen 9 7950X62,120 pts

GPU

Game's recommended spec

AMD Radeon RX 560 / NVIDIA GeForce GTX 1050 Ti

Comfortable play target

4,796 pts(~130% above spec of 3,689 pts)

Parts near this range

GeForce GTX 7604,823 pts Radeon HD 7950 / R9 2804,764 pts Intel Arc A310 LP4,872 pts

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

Details

Overview

A cosmic incremental about feeding a tiny spark until it goes SUPERNOVA. Drag fuel in yourself, let your colonies and their fleets haul it for you, or do both. Stack 158 upgrades, ram rogue planets, merge with dead stars and slingshot matter out of black holes.
Every star starts as a spark. Grow yours until it goes SUPERNOVA, with your own hands or with worlds that work for you.Start As A SparkDrag fuel into a tiny Protostar by hand. Every orb you land makes it bigger. Then start automating: upgrades pull dust in on their own, so your star keeps growing even when you let go.1...