
688(I) Hunter/Killer, the most realistic submarine simulation ever developed for PC. Master the sonar and weapons control systems, learn to develop real target situations and outfit your boat with the latest advanced weaponry. Then use your skills to complete the tour of duty and earn your dolphins to become a true submariner.
Modeled estimate, not a reported figure. How we estimate →
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
About
Stats
Sums Steam only; GOG, Epic publish no volume signal, so the true total is higher by an unknown amount.
| Store | Price | Audience | Score | Chart | Est. revenue |
|---|---|---|---|---|---|
SteamYou are here | $3.79−80% | 227reviews | 82% | — | $23.8K |
| $1.99−80% | 16ratings | 76% | — | not modelled | |
Engagement
Reviews
Themes across 43 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Not Cold Waters, not Command Modern Operations, not Modern Naval Warfare (which never came out) nor Sea Power... only this game makes you THE LORD beneath the waves. Thank God and General Dynamics Electric Boat. ※ライトノベル『フルメタル・パニック!Family』で能登麻美子声のおっさんことさべさべが実況してたゲームでもあります。
It's an old game, but makes for an interesting experience.... You have some sensors... It's intense because it's not a visual sim at all... There is a learning curve but I recommend it...
Media
Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Reviews, worldwide (the counter carries no country): 0.14/day in the week to Aug 25 → 0/day in the week after.
Reviews, worldwide (the counter carries no country): 0.14/day in the week to Aug 7 → 0/day in the week after.
Reviews, worldwide (the counter carries no country): 0/day in the week to Jul 24 → 0/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 26 chart moves that followed a price cut of more than 20% went a median of 7 places towards #1, and the 2,400 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English
| $9.99 |
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| not modelled |
Matched by title — a reused name can pair the wrong games. * is a critic aggregate. Prices and positions are each store's United States storefront; Epic charts worldwide. Audience and Score too, except Steam's, which is worldwide.
Hours played at review time, across 43 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
played this on linux cachyos and loved the blast from the past. works great
very realistic, take time to learn controlls and you will do well.
Симулятор подводной лодки -- игра первая. Удачи вам разобраться во всех датчиках )
As a former RN submariner some features remind me of using the trafalgar class systems. A great game to play
I have been in love with this submarine sim since it came out. I was just a teenager on the look out for military sims at the local game and computer stores when I came across this beauty. I am impressed that it continues to be preserved for ever evolving systems. The graphics are Minecraft level 8 bit, but the core game play and the intensity of the understanding of submarine systems and function continues to impress! Sonalyst Games really nailed it with this flagship version. I've played Sub Command and found it to be buggy to the point of prevention. However, I keep coming back to 688i Hunter/Killer time and again. It is stable, well developed and designed, and I have yet to find a better simulation that encapsulates the essence of the submarine reality. Highly recommend!
good game overall
这远古时代的纯朴,不对着攻略真的玩不动。
Apprendre, comprendre, finesse, excellent jeu en attendant une version plus moderne
Selling now
See how fast this game is selling right now — estimated copies and revenue per day from recent review growth.
Players by region
Where this game's players are, estimated from review languages.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $29.1M | 27.3K | 84% | $29.99 | |
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| $5.6M | 4.7K | 87% | $39.99 | |
| $4.8M | 3.3K | 76% | $39.99 | |
| $1.5M | 2.5K | 91% | $19.99 |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $23.8K | 366 | 84% | $3.74 | |
| $23.8K | 53 | 100% | $14.99 | |
| $23.8K | 113 | 91% | $9.99 | |
| $23.9K | 527 | 74% | $2.99 | |
| $23.8K | 177 | 57% | $5.99 | |
| $23.8K | 69 | 72% | $5.99 |