688(I) Hunter/Killer vs Silent Hunter II
Side-by-side comparison of features, pricing, ratings, and alternatives.
Take the helm of a US Navy Los Angeles‑class attack submarine and engage in tactical underwater warfare. The game blends detailed sonar simulation with strategic mission planning for both solo and multiplayer battles.
Silent Hunter II immerses players in the perilous world of World War II submarine warfare, offering detailed control over German U-boats as they hunt Allied convoys across the Atlantic. The game combines authentic ship models, realistic physics, and strategic mission planning for both solo and multiplayer experiences. Featuring a dynamic campaign, realistic damage modeling, and a robust multiplayer mode, Silent Hunter II delivers a deep simulation that challenges both veteran naval enthusiasts and newcomers seeking a historically grounded combat experience.
- Deep and authentic submarine simulation
- Robust mission editor for custom content
- Multiplayer support adds replayability
- High historical accuracy
- Highly detailed submarine controls
- Authentic WWII naval atmosphere
- Robust multiplayer support
- Extensive mission editor
- Outdated graphics by modern standards
- Steep learning curve for newcomers
- Limited documentation and tutorials
- Steep learning curve for newcomers
- Outdated graphics by modern standards
- Limited AI sophistication in early missions
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Command a WWII U‑boat in the most authentic Atlantic naval simulation ever made

Command a WWII U‑boat in a realistic Pacific theater experience.
The Verdict
AI-generated from listing dataBoth titles offer deep submarine simulation with steep learning curves and dated graphics; choose Silent Hunter II for WWII naval immersion, or 688(I) Hunter/Killer for Cold‑War realism.
Key differences
- •Historical setting: WWII German U‑boats vs. Cold‑War US nuclear subs.
- •Campaign dynamics: Silent Hunter II features mission‑outcome‑driven campaign; 688(I) lacks described campaign persistence.
- •AI sophistication: 688(I) claims dynamic AI adaptation; Silent Hunter II notes limited early‑mission AI.
- •Multiplayer scale: Silent Hunter II supports up to 16 players; 688(I) offers head‑to‑head or cooperative patrols without a player count limit.
- •Developer pedigree: Silent Hunter II by Ultimation/Aeon (Ubisoft); 688(I) by Sonalysts (EA).
Pricing & value
Both cost $49.99 and are paid one‑time/subscription; price identical.
Gameplay & fun factor
Silent Hunter II adds dynamic campaign impact and crew management, offering broader tactical depth.
Multiplayer / co‑op
Supports up to 16 players, enabling larger fleet tactics versus unspecified player limits in 688(I).
Content & replayability
Both include robust mission editors and historical scenarios; neither has extra DLC listed.
Difficulty & accessibility
688(I) notes limited documentation, making it harder for newcomers; Silent Hunter II also steep but offers more tutorials via community.
Graphics & performance
Both described as having outdated graphics by modern standards.
Platform availability
Both listed for PC only; no other platforms mentioned.
Choose 688(I) Hunter/Killer if…
Cold‑War fans seeking authentic nuclear sub tactics and dynamic AI despite limited tutorials.
Choose Silent Hunter II if…
WWII enthusiasts who want a campaign‑driven, crew‑management experience with larger multiplayer battles.
Common questions
Do either of these games require a subscription?
Silent Hunter II is listed as Paid (Subscription); 688(I) is Paid (One‑time).
Which game supports more players in multiplayer?
Silent Hunter II supports up to 16 players; 688(I) supports multiplayer but no player count is specified.
Is there a campaign that changes based on my actions?
Silent Hunter II features a dynamic campaign where mission outcomes affect future operations; 688(I) does not mention such a system.




