Some games I contributed to. Various other games are listed on my itch.io account at kiyasu.itch.io.

Placebo Love is set in the same universe as the game, Last Word, and can be completed in around ten (10) hours to fifteen (15) hours of playtime. I proofread, helped on, and tested this game both during development and after its release.
When Lorne Volley answers a mysterious email from Lady Love he quickly finds his soulmate.
Twice.
Twin strangers who look alike, talk alike, and live similar lives.
You are Lorne's silent Muse. His guiding hand. His inspiration.
Draw him from his loneliness to connect with acquaintances, reunite with family, and explore the ebbing romances of two distant cities. Maybe you'll unravel his doppelganger dilemma and reveal true love. Or maybe he'll end up alone.
★ Release date: September 7th, 2021
★ Platforms: PC and Mac
★ Developed by: Twelve Tiles (Lannie "Merlandese" Neely III)
★ Voices by: Kan Gao, Fleur Breussin, Joel Marzzarella, etc.
★ Soundtrack by: Lannie "Merlandese" Neely III and Fernando "Ferdk" Carabajal
★ Publisher: Twelve Tiles
KEY EXPERIENCES:
★ FOMO: Navigate a tight schedule of diverse bonds
★ HONESTY: Choose when to tell the truth or hide those feelings
★ FUTURES: Unlock multiple endings by juggling contacts
★ INSPIRATION: Be the gentle push and pull of lonely lives
★ itch.io ★ RMN ★ Steam ★ Twelve Tiles ★
Recommended minimum system:Operating System: Microsoft® Windows® 7 | Mac® OS
Memory: 25 MB RAM
Storage: 800 MB available space

This game can be completed in about five (5) hours to nine (9) hours. It is a sci-fi RPG with turn-based combat and some tactical battles.
Star Shift Origins tells the story of the first crew of the Dauntless. Trapped in an alternate reality and on the run, the crew desperately searches for answers while being hunted by the relentless Earth Systems Alliance (ESA).
★ Release date: November 8th, 2021
★ Platforms: PC, Mac, and Linux
★ Developed by: Psychronic Game Studios
★ Chief Developer: Douglas Gustafson ("Psychronic," "Doug," "Galacti-Chron")
★ Editor, Lead Staff, Proofreader, Management, PR/Marketing: Kiyasu Oka
★ Graphics Contributor: Puranjan Hazarika ("Puru Hazarika")
★ Merchandise Producer: Kiyasu Oka
★ Promotional illustration by: Andy Bayo
★ Standalone version publisher: Kiyasu Oka
★ Steam store publishers: G-DEVS.com (November 2021 to November 2023), Psychronic Games
FEATURES:
★ STRATEGIC TURN-BASED COMBAT: There are no levels in Star Shift Origins; skills and stat increases are managed by Knowledge Points acquired from battle.
★ TACTICAL FLEET COMBAT: In addition to the standard turn-based combat, there is a tactical battle system for fleet and army combat.
★ COMPLEX SKILL TREE SYSTEM: Unique skill trees exist depending on a character's species and class.
Buy Standalone ("DRM-Free") Version:
You can purchase the access to download the standalone game plus optional complimentary Steam key. If you want to gift the game to a friend or purchase giveaway copies, please buy separate copies for each person you're giving the game to. After purchasing, I will manually e-mail you the access to download the game. If you want instant delivery for the standalone game download, please purchase the game at kiyasu.etsy.com/listing/1281758067 instead. Recommended minimum system:
Operating System: 64-bit, Microsoft® Windows® 7 | Mac® OS X 10.10 | Ubuntu 14.04
Memory: 4 GB RAM
Processor: Dual-Core 2.0GHZ CPU
Graphics: OpenGL® 4.1 GPU (capable)
Storage: 3 GB available space
NOTE: Despite appearances, if you have a "weak CPU" with only dual core (even on Windows® 10), this game may have major performance issues. This is basically because of the software the game was made in; it doesn't do multi-core. The game may have issues if you are using a later-version Mac® like the Mac® mini M1 that is not on X86 processors. Star Shift Origins runs fine in Mac® OS X 10.11 El Capitan for the most part. It is likely incompatible with macOS® 10.15 Catalina and above...
Purchase Cards, Posters, and Other Goods:
Various merchandise available at: kiyasu.etsy.com/listing/1286975914.

This game can be completed in about nine (9) hours to twelve (12) hours. It is a sci-fi RPG with turn-based combat and tactical battles.
Infernis Prime is a mining colony in the Outer Rim, under brutal occupation. With the help of a hacked android and the discovery of a dark secret, the rebels finally have a chance. This is the story of how the Outer Rim Coalition formed, and how they broke free...
★ Release date: TBA
★ Platforms: PC, Mac, and Linux
★ Developed by: Psychronic Game Studios
★ Chief Developer: Douglas Gustafson ("Psychronic," "Doug," "Galacti-Chron")
★ Series Editor, Lead Staff, Proofreader, Management, PR/Marketing: Kiyasu Oka
★ Graphics Contributor: Puranjan Hazarika
★ Merchandise Producer: Kiyasu Oka
★ Promotional illustration by: Andy Bayo
★ Standalone version publisher: Kiyasu Oka
★ Steam store publisher: Psychronic Games
Preorder Standalone ("DRM-Free") Version:
You can preorder the access to download the standalone game plus optional complimentary Steam key. If you want to gift the game to a friend or purchase giveaway copies, please buy separate copies for each person you're giving the game to. After purchasing, I will manually e-mail you the access to download the game. If you want instant delivery for the standalone game download, please purchase the game at kiyasu.etsy.com/listing/1215054058 instead. Recommended minimum system:
Operating System: 64-bit, Microsoft® Windows® 7 | Mac® OS X 10.10 | Ubuntu 14.04
Memory: 4 GB RAM
Processor: Dual-Core 2.0GHZ CPU
Graphics: OpenGL® 4.1 GPU (capable)
Storage: 5 GB available space
NOTE: Despite appearances, if you have a "weak CPU" with only dual core (even on Windows® 10), this game may have major performance issues. This is basically because of the software the game was made in; it doesn't do multi-core. The game may have issues if you are using a later-version Mac® like the Mac® mini M1 that is not on X86 processors. Star Shift Rebellion runs fine in Mac® OS X 10.11 El Capitan in that the main gameplay should be okay, but there are certain parts in the game where performance major problems; to the point of basically "freezing." It is likely incompatible with macOS® 10.15 Catalina and above...
Purchase Cards, Posters, and Other Goods:



This game can be completed in about eight (8) hours to twelve (12) hours. It is a sci-fi RPG with turn-based combat and tactical battles.
★ Release date: TBA
★ Platforms: PC, Mac, and Linux
★ Game trailer: N/A
★ Developed by: Zachary McQuaid ("Jolt Eagle")
★ Lead Staff, Editor, Management, PR/Marketing: Douglas Gustafson ("Psychronic," "Doug," "Galacti-Chron")
★ Editor, Proofreader, Management: Kiyasu Oka
★ Merchandise Producer: Kiyasu Oka
★ Promotional illustration by: Andy Bayo
★ Standalone version publisher: Kiyasu Oka
★ Steam store publisher: Psychronic Games
Recommended minimum system:
Operating System: 64-bit, Microsoft® Windows® 7 | Mac® OS X 10.10 | Ubuntu 14.04
Memory: 4 GB RAM
Processor: Dual-Core 2.0GHZ CPU
Graphics: OpenGL® 4.1 GPU (capable)
Storage: 5 GB available space
NOTE: Despite appearances, if you have a "weak CPU" with only dual core (even on Windows® 10), this game may have major performance issues. This is basically because of the software the game was made in; it doesn't do multi-core. The game may have issues if you are using a later-version Mac® like the Mac® mini M1 that is not on X86 processors. It is likely incompatible with macOS® 10.15 Catalina and above...
Purchase Posters:
Various poster sizes available at: kiyasu.etsy.com/listing/1406912901.

This is a bigger game aiming for over 20 hours of gameplay. It is a sci-fi RPG with turn-based combat and tactical battles.
The year is 2357. Humans have explored the stars and colonized many worlds under the authority of the Earth Systems Alliance (ESA). Amidst the chaos of a civil war, what would be your legacy?
★ Release date: TBA
★ Platforms: PC, Mac, and Linux
★ Developed by: Psychronic Game Studios
★ Chief Developer: Douglas Gustafson ("Psychronic," "Doug," "Galacti-Chron")
★ Editor, Proofreader, Management: Kiyasu Oka
★ Graphics Contributor: Puranjan Hazarika ("Puru Hazarika")
★ Standalone version publisher: Kiyasu Oka
★ Steam store publisher: Psychronic Games
FEATURES:
**NOTE: The demo is outdated and contains bugs.
★ Over 100 playable characters and hours of gameplay
★ Branching story arcs
★ Base and empire building
★ Strategic turn-based combat (standard)
★ Tactical battle system (fleet and army)
Recommended minimum system:
Operating System: 64-bit, Microsoft® Windows® 7 | Mac® OS X 10.10 | Ubuntu 14.04
Memory: 4 GB RAM
Processor: Dual-Core 2.0GHZ CPU
Graphics: OpenGL® 4.1 GPU (capable)
Storage: 3 GB available space
NOTE: Despite appearances, if you have a "weak CPU" with only dual core (even on Windows® 10), this game may have major performance issues. This is basically because of the software the game was made in; it doesn't do multi-core. The game may have issues if you are using a later-version Mac® like the Mac® mini M1 that is not on X86 processors. Star Shift Origins runs fine in Mac® OS X 10.11 El Capitan for the most part. It is likely incompatible with macOS® 10.15 Catalina and above...