Comparison

AndroidCORE vs Nightmares Within

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

Head to head
About

AndroidCORE

Read full description

Challenge yourself surviving the battle with numerous unlock weapons and skills. FEATURES * Simple click, swipe and tilt controls thats are easy to use and just feel right * Level up your character and unlock new actions, gears and skills to find your own way to fight * Complete different levels of missions with different enemies and circumstances. * Incredibly fun with great feedback, just one more mission.

About

Nightmares Within

Embark on a survival mission on a cursed island, battling relentless undead in a 3D FPS open-world. Scavenge resources, manage ammo, and choose your combat strategy to uncover the secrets of an abandoned hospital.

Highlights
  • High-stakes survival gameplay
  • Resource scavenging and ammo management
  • Stealth and action combat options
  • Deep RPG progression and skill tree
  • Open-world exploration
  • Daily challenges and missions
Features
Read full description

Stranded. Alone. Surrounded by the relentless undead. After a high-stakes mission goes wrong, Army Sergeant Noah is cast onto a cursed island in the Pacific. At its dark heart lies a colossal, abandoned hospital—a labyrinth of secrets that should have stayed buried. Nightmares Within masterfully blends classic Survival with modern 3D FPS Action. In this open world, every corridor hides a threat, and every bullet is a lifeline. Why You’ll Love It: High-Stakes Survival: Scavenge for vital resources and manage your limited ammo to survive brutal, heart-pounding Boss fights. Stealth or Action: You decide the strategy. Snipe from the shadows, go in guns blazing, or perform silent assassinations to clear your path. Deep RPG Progression: Level up Noah’s specialized skills through a deep talent tree to withstand the escalating terror of the island. Daily Challenges: Connect and survive! Experience a dynamic world with consistent updates and challenging missions. Enter the hospital. Fight the undead. Solve the mystery before it’s too late. Download now and face your fears!

Screenshots

AndroidCORE4 screens
Nightmares Within4 screens

Verdict

The call

The clearest difference is in-app purchases: AndroidCORE at none against Nightmares Within's 19. AndroidCORE also leads on update cadence (every 4 days vs every 3 weeks) and iOS requirement (11.0 vs 15.0). On price and device support 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

Both are free to download. Nightmares Within sells 18 one-off in-app purchases. AndroidCORE asks for nothing beyond the download.

UpkeepUpdate frequency

AndroidCORE ships an update every 4 days, Nightmares Within every 3 weeks. The most recent releases landed on October 4, 2026 and October 23, 2026 respectively.

Scorecard3 real differences · 7 level
AndroidCORE versus Nightmares Within: the parameters behind the verdict, then further details
ParameterAndroidCORENightmares Within
PriceFreeFree
Rating—4.4 (21 ratings) — better
Positive reviews—81.8% of reviews
Number of ratings—21 — better
Update frequencyEvery 4 days — betterEvery 3 weeks
Ads—Yes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.0
Further details — not scored
Size295 MB996 MB
Age rating9+17+
DeveloperChenglin FanWaterBear Games

In-app purchases

None

AndroidCORE

No in-app purchases

18 purchases

Nightmares Within

One-time18
  • Beginner's Gift Pack$0.99
  • Judgment Gift Pack$1.99
  • Limited-Time Gold Pack$2.99
Show 15 more
  • Limited-Time Gold Pack$4.99
  • Monthly Member$4.99
  • Precision Part Supply Pack$4.99
  • Upgrade Boost Pack2 variants$4.99
  • Moderate Coins$4.99
  • Permanent VIP$9.99
  • Premium Pass$9.99
  • Precision Part Supply Pack$9.99
  • Limited-Time Gold Pack$9.99
  • Maul Pack$9.99
  • Pile of Coins$9.99
  • Premium Pass +$19.99
  • Loads of Coins$19.99
  • Sea of Coins$49.99
  • Ocean of Coins$99.99

Questions

Is AndroidCORE free?
AndroidCORE is free to download, with no in-app purchases.
Is Nightmares Within free?
Nightmares Within is free to download, with in-app purchases available.
Which is updated more often, AndroidCORE or Nightmares Within?
AndroidCORE ships an update every 4 days, and Nightmares Within every 3 weeks. Most recently, AndroidCORE was updated on October 4, 2026 and Nightmares Within on October 23, 2026.

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