Comparison

Zombie Fortress vs Difficult Game About Letters

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

Head to head
About

Zombie Fortress

Survive a zombie apocalypse on a vast island. Hunt the undead, rescue survivors, and gather supplies to fortify your base. Explore a dynamic 3D world with various weapons and vehicles.

Highlights
  • Zombie hunting and survival
  • Rescue stranded survivors
  • Explore a large 3D environment
  • Multiple weapons and vehicles
  • Day/night cycle and weather effects
  • Base building and defense
Features
Read full description

A Zombie Plague is sweeping across the island, can you citizen help the human survivors against the walking dead. Can you survive yourself? Become the ultimate hunter, there’s a fortress made from an older settlement, find and pick up other survivors in your jeep while looking for supplies/ammo and return them to your fortress and protect them. WEAPONS Handgun/Compound Bow/Pistol Crossbow(Explosive Arrows)/Rifle. Proximity Mines/Gas Canisters. TRANSPORT Motorbike, Boat, Jeep with Power Zoom Rifle. Horse your faithful friend - Whistle to Call. Zip Line Fast Escape. ENVIRONMENT Huge open 3D Environment to roam/explore. Day/Night/Rain. NightTime scary action - Night Vision Googles. Build Campfires/Collect Logs. GAME FEATURES Bone collection Extra XP Bonus. Treasure Chest/Parachute - Pick up Bonus Fuel/Gun Clips/Medi Kits/Explosive pickups. Tutorial/Rewards/Unlimited Quests. Map/Radar/Tracker. STYLE FPS free roam epic action Simulation/Simulator. HD console-quality graphics and gameplay. Stunning Deep Visuals, Soundtrack & Sounds. Full 3D - 360 Degrees Action. In-game Language Translations: English, Chinese, Japanese, German, Portuguese, Russian, French, Spanish, Italian.

About

Difficult Game About Letters

Features
Read full description

When your best friend falls into trouble, it’s up to you to embark on a daring journey through the Land of Letters. In A Difficult Game About Letters, you take control of a character who can transform into any letter of the alphabet. Each letter's shape provides unique abilities, which you’ll need to solve puzzles, navigate obstacles, and complete challenging platforming levels. Here’s what you can do in the game: * Transform Into Letters: Instantly switch between 26 different letters to adapt to obstacles. Each letter's shape can help you in unique ways. * Jump Across Platforms: Use letters like J or V to jump higher or leap across wide gaps. * Hook and Grab: Turn into L or T to hook onto ledges, edges, or moving platforms. * Roll and Squeeze: Transform into round letters like O or C to roll through tight spaces or under obstacles. * Brace and Balance: Use sturdy letters like X or H to block moving walls, balance on narrow platforms

Screenshots

Zombie Fortress4 screens
Difficult Game About Letters4 screens

Verdict

The call

The clearest difference is ads: Difficult Game About Letters at none against Zombie Fortress's shown. Difficult Game About Letters also leads on update cadence (daily vs every 26 months). Zombie Fortress's advantage is ratings volume (4 vs 1). On price, rating, in-app purchases 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. Zombie Fortress sells 7 one-off in-app purchases and Difficult Game About Letters sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Zombie Fortress against 5.0 for Difficult Game About Letters. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

UpkeepUpdate frequency

Zombie Fortress ships an update every 26 months, Difficult Game About Letters daily. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
Zombie Fortress versus Difficult Game About Letters: the parameters behind the verdict, then further details
ParameterZombie FortressDifficult Game About Letters
PriceFreeFree
Rating5.0 (4 ratings)5.0 (1 ratings)
Positive reviews66.7% of reviews—
Number of ratings4 — better1
Update frequencyEvery 26 monthsDaily — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size122 MB230 MB
Age rating17+4+
DeveloperJurassic AppsGiorgi Abelashvili

In-app purchases

7 purchases

Zombie Fortress

One-time7
  • Handful of Sunga's - 10$0.99
  • Satchel of Sunga's - 20$1.99
  • Backpack of Sunga's - 45$2.99
Show 4 more
  • Chest of Sunga's - 100$3.99
  • Cart of Sunga's - 300$9.99
  • Wagon of Sunga's - 1000$14.99
  • Shed of Sunga's - 3000$40.99
1 purchases

Difficult Game About Letters

One-time1
  • Full Game$4.99

Questions

Is Zombie Fortress free?
Zombie Fortress is free to download, with in-app purchases available.
Is Difficult Game About Letters free?
Difficult Game About Letters is free to download, with in-app purchases available.
Which has better reviews, Zombie Fortress or Difficult Game About Letters?
Zombie Fortress and Difficult Game About Letters are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.
Do Zombie Fortress or Difficult Game About Letters have ads?
Zombie Fortress shows ads; Difficult Game About Letters does not.
Which is updated more often, Zombie Fortress or Difficult Game About Letters?
Zombie Fortress ships an update every 26 months, and Difficult Game About Letters daily. Most recently, Zombie Fortress was updated on October 24, 2026 and Difficult Game About Letters on October 24, 2026.

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