Comparison

Interloper vs Ocean Keeper

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Interloper

Experience intense space combat with a six-degrees-of-freedom flight simulator. Engage in fast-paced missions, customize your fighter with various load-outs, and build your arsenal with salvaged gear. Play solo or with elite squadrons.

Highlights
  • Six degrees of freedom flight
  • MFi controller support
  • Intense haptics
  • Fast-paced missions
  • Fighter customization
  • Salvaged gear and arsenal building
  • Squadron support
Features
Read full description

*The* space flight combat simulator, designed for iOS, developed by Anchorite. FLY like you've never flown before on iPhone and iPad with a full six degrees of freedom. Play it your way in either portrait or landscape. TAKE HOLD with full support for MFi controllers or get up close and personal to be immersed with intense haptics and on-screen controls. DEFEND your people against the oppressive COMMONWEALTH. ENGAGE in a selection of fast-paced missions and beautiful environments. IGNORE THE ODDS and go toe to toe with swarms of fighters, frigates armed to the teeth or hulking capital ships. DON'T GO IN ALONE, bring your own elite fighter squadrons. CUSTOMISE your fighter with an array of load-out options. BALANCE your choice of weapons, utilities and wingmen. Experiment with new equipment or get comfortable with favourites. BUILD UP your arsenal with salvage from each successful run. EQUIP potent salvaged items to take on the heavily armed COMMONWEALTH fleets. KEEP YOUR COOL and you'll make it out alive. Getting wiped out means giving up on your current gear and loot. BAIL OUT early if things are looking tough and live to fight another day.

About

Ocean Keeper

Explore procedurally generated underwater caves as a crashed miner in this roguelike shooter. Dig for resources, battle hordes of sea monsters, and upgrade your mech and weapons to survive. Each playthrough offers a unique challenge with changing layouts and diverse bosses.

Highlights
  • Procedurally generated caves
  • Mech customization
  • Horde battles with monsters and bosses
  • Meta-progression system
  • Artifact system
  • Multiple weapon choices
  • Diverse biomes
Features
Read full description

A roguelike shooter with a top-down view where you play as a Miner whose spaceship has crashed on a planet, filled with underwater monsters! Use the time between each attack to power up your diver, mech, or weapon. Build automatic turrets, use drones to gather resources and improve your skills to increase your chances of survival. Discover mysterious locations and fantastic undersea deep biomes. EACH time you explore the underwater worlds, the layout changes, making every journey unique. You never play the same scenario twice in this drill dungeon core roguelite. Ocean Keeper: Dome Survival Features: * Procedurally generated caves: each dungeon you enter is unique. * Mech customization: Upgrade and personalize your Submarine Mech. * Underwater casual game with roguelite and roguelike elements. * Horde Battles: Fight waves of sea monsters and bosses. * Meta-progression: Constant upgrades and new abilities for your survivor. * Artifact System: Unlock and equip powerful artifacts. * Multiple Weapons: Choose from a huge arsenal of weapons. * Diverse Bosses: Slay unique and challenging alien bosses. * Multiple biomes: Explore different underwater dungeons. - How to Play Ocean Keeper: Dome Survival: Play with two hands and swipe your finger across the screen to move the diver in any direction, or use the virtual joystick. Find a mine (a deep hollow lighted in blue), dive into it and start digging to find resources. Since you don't have a backpack, you need to drag the resources yourself up to the mech. Get out of the mine as soon as you hear the sound of an attack or see the timer expire. Attack aliens by aiming at them and firing bullets. Collect various resources to unlock powerful upgrades: improve your weapons, increase the impact of your drill, boost your jetpack's max speed, and many other upgrade paths - each of which gives you and your dome the best chance of survival until dawn! - Join The Fans of Ocean Keeper: Dome Survival: Join our community and become an part of Ocean Keeper: Dome Survival development! In our Discord, you can chat directly with our developers, share your valuable feedback, and have a real impact on the final version of Ocean Keeper: Dome Survival roguelike game.

Screenshots

Interloper4 screens
Ocean Keeper4 screens

Verdict

The call

The clearest difference is price: Ocean Keeper at Free against Interloper's $1.99. Ocean Keeper also leads on update cadence (every 4 days vs fortnightly). Interloper's advantage is in-app purchases (none vs 4) and ads (none vs shown). On rating, ratings volume, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Ocean Keeper is free to download; Interloper costs $1.99 up front. Ocean Keeper sells 4 one-off in-app purchases. Interloper asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Interloper against 4.4 for Ocean Keeper. Both are backed by a comparable volume of ratings — 534 and 291 respectively. Written reviews are what separate them: 67% of Interloper's written reviews are positive against 48% of Ocean Keeper's.

UpkeepUpdate frequency

Interloper ships an update fortnightly, Ocean Keeper every 4 days. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 4 level
Interloper versus Ocean Keeper: the parameters behind the verdict, then further details
ParameterInterloperOcean Keeper
Price$1.99Free — better
Rating4.5 (534 ratings) — better4.4 (291 ratings)
Positive reviews66.8% of reviews — better48.0% of reviews
Number of ratings534 — better291
Update frequencyFortnightlyEvery 4 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod, Mac, Apple TV — betteriPhone, iPad, iPod, Mac
Requires iOS13.012.0 — better
Further details — not scored
Size200 MB272 MB
Age rating12+9+
DeveloperMathew PurchaseRetroStyle Games

Customer experience

Interloper

All ratings533 ratings
Positive86.5%
Neutral4.1%
Negative9.4%
Written reviews241 reviews
Positive66.8%
Neutral12.9%
Negative20.3%

Ocean Keeper

All ratings288 ratings
Positive83.3%
Neutral4.5%
Negative12.2%
Written reviews198 reviews
Positive48.0%
Neutral10.1%
Negative41.9%

User reviews

Interloper

From 534 App Store ratings

What we love

  • 🚀 Excellent gameplay and controls
  • 🚀 Immersive space combat experience
  • 🚀 Satisfying weapon feedback
  • 👍 Unique and appealing visual style
  • 👍 Good value for the price

Room to improve

  • 🐛 Frequent crashes and bugs
  • 🐛 Progression and save issues
  • 🔋 Overheating and battery drain on some devices
  • 🔒 Unresponsive or confusing UI controls
  • 🔒 Difficulty balancing and progression

Ocean Keeper

From 291 App Store ratings

What we love

  • 🫰🏻 Stunning ocean-themed visuals
  • 🎮 Engaging roguelike gameplay
  • 🕹️ Addictive and fun horde battles
  • 🔝 Rewarding resource gathering and crafting
  • 🕰️ Casual gameplay for short sessions

Room to improve

  • 💰 Pay-to-play model after free trial
  • 📱 Illegible UI on mobile devices
  • 🤑 Unfair IAP practices, requiring repurchase
  • 🐛 Bugs and crashes, especially after purchases

Bugs and requests

Interloper

Reported bugs

5 issues
  • Tutorial not functioning properly
  • Weapons not firing correctly
  • Missions getting stuck or not completing
  • Inconsistent save and progression tracking
  • UI elements overlapping or disappearing

Requested features

5 requests
  • Multiplayer mode
  • Expanded mission and level variety
  • Pilot and ship customization options
  • Clearer progression and reward systems
  • Performance optimizations for older devices

Ocean Keeper

Reported bugs

3 issues
  • Game not loading after purchase
  • Upgrade options not functioning as expected
  • Progress not saving across sessions

Requested features

4 requests
  • More items and upgrades to prolong engagement
  • Ability to restore purchases and continue progress
  • Improved UI scaling and readability on mobile
  • Expanded gameplay modes and story elements

In-app purchases

None

Interloper

No in-app purchases

4 purchases

Ocean Keeper

One-time4
  • Full Game Unlock$2.99
  • Heap of meta currency$2.99
  • Chest of meta currency$4.99
Show 1 more
  • Crate of meta currency$9.99

Questions

Is Interloper free?
Interloper costs $1.99, with no in-app purchases.
Is Ocean Keeper free?
Ocean Keeper is free to download, with in-app purchases available.
Which has better reviews, Interloper or Ocean Keeper?
Interloper is rated higher. Interloper averages 4.5 out of 5 from 534 ratings, while Ocean Keeper averages 4.4 from 291 ratings.
Do Interloper or Ocean Keeper have ads?
Ocean Keeper shows ads; Interloper does not.
Which is updated more often, Interloper or Ocean Keeper?
Interloper ships an update fortnightly, and Ocean Keeper every 4 days. Most recently, Interloper was updated on November 2, 2026 and Ocean Keeper on October 30, 2026.

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