Screenshots
Watch trailer on Steam ↗RANDOMAX
ASTRO PORT · Published by Henteko Doujin, Sanuk Inc.
Very Positive — 93% positive (72 reviews) · 49 achievements
Last updated 28 Sept 2026
Ride or drive the turbulent waves of luck toward victory! A novel rogue-lite vertical scrolling Shmup that puts your resourcefulness to the test!
£8.50
Lowest price we've ever recorded
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Price history
Action, Indie · 2025 · More £5 - £15 games
Navigate the turbulent waves of luck in RANDOMAX, an action-packed indie game from ASTRO PORT. Experience a novel rogue-lite vertical scrolling Shmup where every run is a test of your resourcefulness and skill.
About this game
Overview
Ride or drive the turbulent waves of luck toward victory!
A novel rogue-lite vertical scrolling Shmup that puts your resourcefulness to the test!
A vast and random arsenal of misdelivered heavy weapons enter into your possession.
Find the most effective way to utilize them and turn the tides of battle in your favor!
Story
The year is 2050 AD.
In a far flung corner of the galaxy, an area known as the Sepulch Space Archipelago is attacked by an infamous band of raiders known as the “Randomax Pirates”! These nefarious marauders quickly subjugate the peaceful islands, transforming the region into a sea of evil villainy.
Amid such turmoils, three women of exceedingly bold personalities appear on the scene determined to venture into these dangerous waters, along with a mysterious shipping company known as “ARGO EXPRESS”! Erika, a self proclaimed employee of this company offers them a proposal...
"We'll give you our stock of misdelivered weapons and ammo. Wanna use it to take out the bad guys?”
And so a chaotic battle fueled by a vast stockpile of mismatched weapons quickly ensues!
Characters & Ships
Cosmi The hot-blooded policewoman of the Planetary Police Force.
She proudly rides into battle piloting her ship the Blue Cosmic!
Urara The cyber idol and promising newcomer to the team.
At 9 meters tall and weighing 550...(ahem!) She IS her ship, the URARARA★Recital SP!
Dariha The dignified yet outcast aristocrat.
She may wear rags, but her heart is brocade. A ceaseless savior for the common folk.
Her ship is the Barra 35T.
System
Rogue-lite vertical scrolling STG with over 70 types of randomly supplied equipment and weapons.
Three equip slots to assign combinations of unique weapons such as “back bombs” and “bullet reversing barriers”.
How you attack, defend, collect items, your play-style and your luck will generate an infinite number of possibilities!
Features
6 stages + 3 character-specific stages each for a total of 9 stages
3 types of ships each with distinct characteristics
More than 70 different types of equip-able armaments!
A unique ending for each character
6 adjustable difficulty levels
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10, 11 64Bit
- Processor: Intel Celeron 2.0GHz or better
- Memory: 8 GB RAM
- Graphics: Integrared Graphic Chip
- DirectX: Version 9.0c
- Storage: 550 MB available space
- Sound Card: Integrated Sound Chip
Recommended
- Requires a 64-bit processor and operating system
Supported Languages
Latest news
Community & EventsOfficial
Kamikaze Empire Launches & Steam Bullet Fest 2026 Is Now Live!
Self Destructive Shmup Kamikaze Empire Is Out Now! Carve the path to victory with kamikaze attacks—Kamikaze Empire, the first self destructive shmup of its kind, launched on Steam on June 8, 2026! Blow away enemies with a wildly varied arsenal, then turn yourself into a living projectile and go out in a blaze of explosive glory right in the heart of enemy lines! Getting shot down is your chance for honor, and lives are infinite. Experience a thrilling and brutally chaotic style of gameplay where you charge toward the goal while taking everything around you down with you. ▶ Visit the Kamikaze Empire store page Steam Bullet Fest 2026 Is Now Live! This Title Is Taking Part Too Steam Bullet Fest 2026, a celebration of bullet-filled shooting games, is now live. The title whose store page you are viewing is also taking part in the event! During this festival spotlighting bullet-filled titles, Henteko Doujin's shmup lineup is also available together at discounted prices. Check out the publisher page below for the other sale titles! ▶ Henteko Doujin Publisher Page https://store.steampowered.com/publisher/hendj Don't miss this chance to enjoy Kamikaze Empire and the Henteko Doujin bullet hell/shmup lineup. Something New, Sometimes Weird! ── Henteko DoujinRead full article on Community Announcements (Henteko Doujin)AnnouncementsOfficial
Revolgear Zero Launch + Henteko Doujin Sale Now Live!
Bikkuri Software’s latest shoot ’em up, Revolgear Zero, is out now! 🎉 https://store.steampowered.com/app/3941820/ Build your own ship with deep customization and a wide range of weapons, then dive into fast, satisfying battles. Enjoy a fresh shmup experience that blends classic STG spirit with modern gameplay. 🎉 Launch Sale Now On! 🎉 To celebrate the release of Revolgear Zero, all Henteko Doujin shmups are heavily discounted! https://store.steampowered.com/publisher/hendj Don’t miss this chance to grab a collection of top-tier shmups at great prices!Read full article on Community Announcements (Henteko Doujin)Patch NotesOfficial
Fix for Analog Stick Issue.
- Fixed an issue where movement speed slowed down when inputting diagonally with the analog stick.Read full article on Community Announcements (Eroge Japan)Patch NotesOfficial
[Patch note Ver.0212] Improvement of visibility and vibration support
- Added option to CONFIG to improve bullet visibility - PAD SETTINGS notations unified with X input notations - Added support for controller vibration function - Improved window size settingsRead full article on Community Announcements (Eroge Japan)
