PCGame

Sierra Ops - Space Strategy Visual Novel

Space-war visual novel with branching choices and real-time ship battles

Innomen Team · Published by Sekai Project · Released Jan 16, 2020

AdventureCasualIndieStrategy

Reviews
Very Positive
88% of 362
Recent reviews
Not enough recent
Players
1
daily peak, Nov 7, 2026
Steam Deck
Playable
Last update on Steam
4 years ago
Dec 26, 2021
Minimum PC
with DX9 (shader model 2.…
4 GB RAM · 3 GB disk
Full requirements

What is Sierra Ops - Space Strategy Visual Novel?

An episodic visual novel set during a war between Earth and the Mars-based Ares Confederacy. As Captain Junius Fahrenheit aboard the Sierra, you make story choices, spend time with crewmates, customize your ship and loadout, and fight real-time battles that combine mobile tower defense with shooting.

For you if...

  • +you like making time-sensitive story and relationship choices
  • +you enjoy customizing a ship for tactical battles

Not for you if...

  • −you prefer frequent combat to long stretches of reading
  • −you want an easy path through ship-defense battles

What players say

88% of 362 reviews are positive

Players praise the morally gray story, consequential choices, and strategic combat. Their main complaint is that the story remains unfinished.

How many players finish Sierra Ops - Space Strategy Visual Novel?

2.9% of Steam players have unlocked «Dissonance and Resonance», the achievement for finishing the main story.

Share of everyone who owns the game on Steam, including those who barely played it. Updated weekly.

Screenshots and trailer

Sierra Ops - Space Strategy Visual Novel screenshot 1

Sierra Ops - Space Strategy Visual Novel system requirements

Minimum: with DX9 (shader model 2.…, 4 GB RAM, 3 GB of disk space.

As published by the developer.

Can my PC run Sierra Ops - Space Strategy Visual Novel?

Tell us your graphics card once and every game page will answer this for you.

Set up my PC →

Minimum

OS
Windows 7 (SP1+)
Processor
Every modern Intel and AMD CPU that supports SSE2
Graphics
Graphics card with DX9 (shader model 2.0) capabilities
Memory
4 GB RAM
Storage
3 GB available space
DirectX
Version 9.0

Recommended

OS
Windows 10
Graphics
DX10 capable GPUs
Memory
8 GB RAM
DirectX
Version 10

Does Sierra Ops - Space Strategy Visual Novel have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Does Sierra Ops - Space Strategy Visual Novel run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

  • Sometimes shows mouse, keyboard or non-Deck controller icons
  • Some in-game text is small and may be hard to read
  • All functionality is accessible with the default controller configuration
  • Default graphics settings perform well on Steam Deck

PC version details

DRM
None declared on Steam
Controller
Full controller support
Platforms
Windows
Achievements
31
Steam features
Cloud saves, Family Sharing, Trading cards
Languages
Text only: English.

Does Sierra Ops - Space Strategy Visual Novel use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 25, 2026. How to filter AI games on Steam

Tags

Recent updates

4 DLC available.