
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
My grandfather got me this game on my birthday in 2006 on a CD-ROM after for so long when I was little sitting on his knee while he played. I was so happy to get my first CD Copy on my own to play on my Gateway Profile 5 PC. Now i'm 5 years away from thirty now as I play this on Steam. Thank you Grandpa Michael love you and miss you everyday. :)
Don't buy it all of the servers are offline permanently and the game DOES NOT RUN!
Media
Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
This and every other Pro feature is free until October 20, 2026. A free account is all it takes.
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 25 chart moves that followed a price cut of more than 20% went a median of 10 places towards #1, and the 2,413 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 |
| — |
| — |
| — |
| 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
Buy if you want to play a submarine game that no ♥♥♥♥, was used to train officers for submarines in the United States Navy. My dad can confirm this as he was a nuke onboard those long tubes filled with seamen
The fact I got so much enjoyment out of this hardcore nuclear submarine simulator is how I know I'm getting older. Reading of the beefy manual is mandatory if you want to so much as submerge this thing. It'll be a while before you get comfortable with the controls, and even then it's a good idea to keep the manual handy. It's a game from 97 so the 3D graphics are very quaint, which does not mean they skimmed on the details. Moreover, the immersive audio design is doing most of the legwork in selling the experience: the faint propeller noises heard in the hydrophone as you hunt for ships, the hum of your own propeller which grows louder as you speed up, the sonar pings as you are hunted and hunt in turn, the screams of your men as you sink to the bottom... There may be more modern alternatives, but this game is still the complete package, and I highly recommend it if it seems like your kind of thing.
Gave me PTSD.
Although old, 1997, it is the most authentic submarine game ever. You need to be patient and willing to learn a lot of info and how to act upon it. If your looking for a submarine shooter game, this is not for you. If you want to learn a lot about commanding a sub, learning sonar, TMA and fire control this is the game. Be prepared for a long game.
Still one of the best submarine simulations of all time. Too bad content was limited back when it was made but they've patched it up enough to run smoothly even on Windows 11.
good simulator if you can get past the older graphics, and the 2 ish hours of reading the manual to actually learn how to play.
the soundtrack in this game is an absolute killer
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...
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 |
|---|---|---|---|---|
| $23.8K | 366 | 84% | $3.74 | |
| $23.8K | 165 | 71% | $4.89 | |
| $23.9K | 134 | 96% | $9.99 | |
| $23.8K | 113 | 81% | $9.99 | |
| $23.8K | 113 | 91% | $9.99 | |
| $23.8K | 77 | 95% | $12.99 |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $29.1M | 27.3K | 84% | $29.99 | |
| $13.1M | 6.7K | 91% | $49.99 | |
| $9.3M | 8K | 61% | $26.24 | |
| $5.6M | 4.7K | 87% | $39.99 | |
| $4.8M | 3.3K | 75% | $39.99 | |
| $1.5M | 2.5K | 91% | $19.99 |