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Game library / Sierra Ops - Space Strategy Visual Novel
Sierra Ops - Space Strategy Visual Novel
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Steam

Sierra Ops - Space Strategy Visual Novel

Woefully ill-prepared, play as Captain Fahrenheit as they uncover long-lost secrets new and old, while fighting in an impossible war between Earth and Mars.

Released · 2020-01-16

At a glance

About this game

Core game information and the store records it came from.

Title
Sierra Ops - Space Strategy Visual Novel
Content
Game
Release date
2020-01-16
Developer
Innomen Team
Publisher
Sekai Project
Platforms
Windows
Steam Deck
Playable Valve's compatibility rating
Connected stores
1
Steam Steam source details
Store title
Sierra Ops - Space Strategy Visual Novel
Product ID
364210
Developer
Innomen Team
Publisher
Sekai Project
Store platforms
Windows
Source checked
2026-10-18 15:20 UTC

Open official store page ↗

Compare & explore

One game, connected stores

Each store keeps its own prices and observations. We prefer the latest recorded EUR price for Europa. When the displayed currency differs from the store amount, a separate approximate value may use the latest available ECB reference rate.

Some store links may be affiliate links. We may earn a commission from qualifying purchases, at no extra cost to you. This does not affect prices, ratings or rankings. How commercial links work.

Lumiri price context

Recorded price comparison

Matching store titles. One currency. One market.

EUR SE

Lowest recorded amount

14.79 EUR

Steam

Recorded 5 days ago Over 48 h old

Difference between stores

—

One comparable store. A difference needs another matching store price.

Distance from observed low

+7.40 EUR

Steam listing only. Low: 7.39 EUR.

Last seen
Newest included record

1 record is over 48 hours old.

1 included price record from 1 store · 1 linked listing

See the 1 included observation
  • Steam history →Sierra Ops - Space Strategy Visual Novel
    14.79 EUR
    5 days ago · over 48 h old
How this comparison works

Only original EUR amounts recorded for SE and matching titles linked to this game are compared. Edition words and numbers must match. Other editions, source-market fallbacks and currency estimates are excluded.

These are recorded observations. Check the store for the current price, availability and included content. Historical lows belong to the named listing in this market and reflect the history Lumiri GameDB has collected.

Ratings at a glance

Community and editorial ratings

81/100

Steam rating

1 included source · 42 underlying reviews

Steam

Steam

81/100 81% positive

81/100

42 user reviews · Positive

34 positive · 8 negative

Included in the combined rating.

Checked

View the rating chart · User sources need 10 reviews; verified editorial sources qualify directly. The combined score is the arithmetic mean of included sources, not weighted by review count.

How you can play

Features and tags

Select a feature to find other games that have it.

Show all features and tags

Store tags

Genres

  • Adventure
  • Casual
  • Indie
  • Strategy

Categories and genres from the Steam store, observed 2026-10-18. Store tags from Steam, as players and the store apply them.

Game challenges

Achievements

31 achievements collected from supported stores. Percentages show the global share of players who unlocked each achievement, not personal player activity.

Steam

Burn Scars

Wake up from the nightmare.

9.7% of players unlocked this
Steam

Digital Memories

Meet the shadow of an old friend.

6.5% of players unlocked this
Steam

Libertas Ares

Watch the fateful broadcast.

6.1% of players unlocked this
Steam

Enter Earth

Return to the Terra system.

6.0% of players unlocked this
Steam

Trigger Happy Fools

Complete the Rhines ending of the introduction.

4.6% of players unlocked this
Steam

Ace

Be the best reinforcements anyone at Rhines can ask for.

3.8% of players unlocked this
Show all 31 achievements · 25 more
Steam

Empty Speculation

Complete the Icoros Novo ending of the introduction.

3.6% of players unlocked this
Steam

Red Tide

Complete the Mondshire ending of the introduction.

3.5% of players unlocked this
Steam

Hidden achievement

3.3% of players unlocked this
Steam

Down, but not Out

Fight to the bitter end at Mondshire.

3.0% of players unlocked this
Steam

Above Pay Grade

Go above and beyond the call of duty at Mondshire.

2.9% of players unlocked this
Steam

Dissonance and Resonance

Complete the main story.

2.9% of players unlocked this
Steam

Hidden achievement

2.9% of players unlocked this
Steam

Always a Good Time for Upgrades

Preview the augmentations dock before they're accessible.

2.8% of players unlocked this
Steam

Better Uses of Time

Decide there are better uses of time than interrogating random ships.

2.8% of players unlocked this
Steam

Expectations Blown

Be the perfect escort and don't lose a single transport.

2.8% of players unlocked this
Steam

Straight S Student

Complete main story with an average rank of S.

2.8% of players unlocked this
Steam

Hidden achievement

2.7% of players unlocked this
Steam

Beautiful Rotten City

Go on an outting with Jean.

2.6% of players unlocked this
Steam

Exploring Every Beginning

How else are you going to make an informed decision?

2.6% of players unlocked this
Steam

Kobayashi Binasu

Who said you had to follow the rules?

2.6% of players unlocked this
Steam

Tourist

Take a tour around the system. What could happen?

2.6% of players unlocked this
Steam

Hidden achievement

2.5% of players unlocked this
Steam

Moving Forwards

Go on an outting with Freija.

2.3% of players unlocked this
Steam

Collapsing Daybreak

Get all achievements in the introduction.

2.2% of players unlocked this
Steam

Rough Times

Go on an outting with Claine.

2.2% of players unlocked this
Steam

Hidden achievement

2.2% of players unlocked this
Steam

Big Brother Fetish

Go on an outting with Rutherford.

2.0% of players unlocked this
Steam

Goddess' Grace

Go on an outting with Allen.

2.0% of players unlocked this
Steam

I Don't Get You

Go on an outting with Ashton.

2.0% of players unlocked this
Steam

Poster Boy

Complete all achievements.

1.9% of players unlocked this
Additional content

DLC

Player activity

Observed Steam player history

Latest 1,000 points at most. Bucket averages; the first bucket is included in full. Summary averages are approximate.

Last observed Steam players
0
2026-11-10 20:34 UTC
Observed peak · 7d
0
Within the displayed history
All-time observed peak
4
· since Lumiri started observing
Average players · 7d
0
1 local samples · approximate for grouped data
First signal received

0 players observed

Observed player history is starting. The trend chart will appear automatically after the next collected sample.

View exact player observations
  • 2026-11-10 20:00: 0 average players

Observed by Lumiri GameDB during 7d. Times are UTC. Lines connect observations; gaps are not measured.

Open full player history

Player statistics details
  • Samples: 1
  • Minimum: 0
  • Maximum: 0
  • Average: 0
Recorded prices

Price history · Steam

EUR observations for market SE. History belongs to the selected store listing; regional prices and taxes may differ.

Historical low observed by Lumiri GameDB: 7.39 EUR, last seen

Observed EUR price history Recorded prices over the past year, in UTC. A price holds until the next observation. Exact values follow below. 0 5 10 15 20 2026-10-18 15:20 UTC · 14.79 EUR2026-10-27 03:32 UTC · 7.39 EUR2026-11-09 22:08 UTC · 14.79 EUR 2026-10-18 15:20 UTC 2026-11-09 22:08 UTC
View 3 recorded prices
  • 2026-10-18 15:20: 14.79 EUR
  • 2026-10-27 03:32: 7.39 EUR (50% off)
  • 2026-11-09 22:08: 14.79 EUR

Prices observed by Lumiri GameDB in EUR.

Catalogue activity

Recent changes

Prices, release dates and store listing updates we detected. Repeated store refreshes are grouped.

  1. Price increase Steam

    7.39 EUR → 14.79 EUR (+100%)

  2. Price increase Steam

    7.49 USD → 14.99 USD (+100%)

  3. Price drop Steam

    14.99 USD → 7.49 USD (−50%)

Show full history 1 older
  1. Price drop Steam

    14.79 EUR → 7.39 EUR (−50%)