Comparison

Classic Marathon vs UNDOOMED

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

Head to head
About

Classic Marathon

Relive a classic first-person shooter experience with this enhanced port. Explore 27 levels, battle alien forces, and engage in various multiplayer modes. Features include high frame rate support, HD sprites, and cross-platform multiplayer.

Highlights
  • 27 levels across six chapters
  • Multiplayer with up to 8 players
  • Exploration, puzzles, and extermination missions
  • Console-quality gameplay
  • 7 unique weapons
  • Cross-platform multiplayer support
Read full description

Classic Marathon® is the first in the original epic trilogy of first person shooter games that defined the genre. Experience the pulse-pounding action as you defend the Marathon from the alien Pfhor. Play with your friends and enemies in Every Man for Himself, Capture the Flag, King of the Hill, Cooperative, or Kill the Man With the Ball. ENHANCEMENTS • High frame rate support • Updated HD Sprite set • 3D positional sound with HRTF • Texture parallax mapping • Multiplayer cross-play with Linux, Mac, PC, and Steam FEATURES • 27 levels divided into six chapters. • LAN-based multiplayer with up to 8 players. • Missions include exploration, puzzles and extermination. • Console-quality gameplay. • MFi controller support. • 3D Touch and haptic feedback. • Dynamic reticle and High-resolution textures. • 7 unique weapons including: .45 Magnum Mega Class pistol M.75 Assault Rifle/Grenade Launcher Zeus Class Fusion Pistol TOZT-7 flamethrower ... and the devastating SPNKR-X17 rocket launcher ===== "Being naked in space stinks. Lucky for you, Mr. Security officer, you are dressed in active military uniform, complete with a Cyberheadª helmet. Your Cyberhead device is your interface to your surrounding environment." ===== STORY • Defend the UESC Marathon colony ship against the aggressive Pfhor • Play the role of the cyborg security officer • Witness the rampancy of Durandal, the ship-board A.I. • Uncover the surprising secrets of the Pfhor and the UESC Marathon ===== "Carnage is as easy as point and shoot. Different weapons are characterized with different dynamics. It is unwise, for example, to use the rocket launcher in close combat." ===== Visit us at http://www.marathon-ios.com Follow us on twitter http://www.twitter.com/blezek Source code for this app is also licensed under the GNU General Public License (http://www.gnu.org/licenses/gpl-3.0.html). See http://www.marathon-ios.com for details. ===== "Move fast, seize the initiative, wield superior firepower, dive into the melee, anticipate enemy movements, slaughter the defenseless, endure." ===== BUNGIE™, MARATHON® and the Bungie and Marathon logos are either trademarks or registered trademarks of Bungie, Inc., used with permission.

About

UNDOOMED

Engage in an action-packed first-person shooter experience with retro-style graphics. Battle monsters through randomly generated levels, aiming to reach the exit of each stage. Test your shooting skills in this thrilling combat game.

Highlights
  • Dungeon crawler gameplay
  • Survival wave shooter
  • Classic FPS gameplay
  • Procedurally generated maps
  • Endless levels
  • 3D graphics
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A fast, old-school 3D shooter on a dead starship. No loadouts, no grind, no internet needed: just you, your guns and whatever the virus turned the crew into. THE STORY You are a prisoner. The deal: bring the derelict ship home and you walk free. The ship is not as empty as they told you. Fight your way down through 50 decks, from the cell block to the drive core, and find out what happened to the crew. WHAT YOU GET • 50 levels in 5 zones: Cell Block, Medical Labs, Crew Quarters, Docking Spine and The Core • Every run is new: procedurally generated decks with loops, side paths, secret vents and keycard doors • 3D mutating monsters: the deeper you go, the less human they are. Shoot off limbs, watch them crawl • A guardian boss at the end of every zone, each with its own attacks • Classic arsenal: fists, pistol, shotgun, rockets, homing launcher and a plasma rifle • Traps that belong on a broken ship: sparking power cables, fire grates, laser gates and security turrets • Elite monsters, specimen tanks that burst open, secret stashes and crew logs to find • Cinematic cutscenes, a full ending and an unlockable Survival Arena around the ship's drive core • Retro pixel look with an optional CRT filter, smooth on older phones • Dynamic soundtrack that kicks in when the fight starts • 13 achievements (Game Center) • Gamepad support, touch controls with a floating stick, haptics • Play offline, any time Fast movement, keycards, sliding doors and secrets around every corner: the shooters you grew up with, rebuilt for your phone. Credits: sound effects and player sprites from Freedoom, © Contributors to the Freedoom project (BSD licence).

Screenshots

Classic Marathon3 screens
UNDOOMED4 screens

Verdict

The call

The clearest difference is ads: Classic Marathon at none against UNDOOMED's shown. UNDOOMED's advantage is update cadence (every 3 weeks vs every 2 months). On price, rating, review sentiment and ratings volume 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. Classic Marathon sells 10 one-off in-app purchases and UNDOOMED 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

Classic Marathon holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 630 and 1.6K respectively. Written reviews point the same way: 76% of Classic Marathon's written reviews are positive against 69% of UNDOOMED's.

UpkeepUpdate frequency

Classic Marathon ships an update every 2 months, UNDOOMED every 3 weeks. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 8 level
Classic Marathon versus UNDOOMED: the parameters behind the verdict, then further details
ParameterClassic MarathonUNDOOMED
PriceFreeFree
Rating4.5 (630 ratings) — better4.3 (1.6K ratings)
Positive reviews76.2% of reviews — better68.5% of reviews
Number of ratings6301.6K — better
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size125 MB146 MB
Age rating12+12+
DeveloperDustin WenzJob Van Wijngaarden

Customer experience

Classic Marathon

All ratings612 ratings
Positive87.1%
Neutral4.2%
Negative8.7%
Written reviews282 reviews
Positive76.2%
Neutral6.7%
Negative17.0%

UNDOOMED

All ratings1,636 ratings
Positive84.5%
Neutral6.2%
Negative9.2%
Written reviews254 reviews
Positive68.5%
Neutral12.2%
Negative19.3%

User reviews

Classic Marathon

From 630 App Store ratings

What we love

  • 👍 Faithful port of a classic game
  • 🚀 Smooth gameplay and controls
  • 💡 Appreciated free version with optional HD upgrade
  • 🎮 Great with controller support
  • 🕹 Nostalgic experience for longtime fans

Room to improve

  • 🐛 Occasional crashes and bugs
  • 🕹 Challenging touch controls
  • 🔒 Lack of customization options (e.g. invert Y-axis)
  • 🔋 Drains battery quickly

UNDOOMED

From 1.6K App Store ratings

What we love

  • 🎮 Retro FPS feel
  • 🕹️ Smooth controls
  • 🎶 Great soundtrack
  • 💰 Free to play
  • 🔍 Faithful to Doom

Room to improve

  • 🐛 Frequent level resets
  • 🔍 Repetitive level design
  • 🔫 Oversized weapons blocking view
  • 🕹️ Unresponsive controls
  • 🔍 Lack of enemy variety

Bugs and requests

Classic Marathon

Reported bugs

4 issues
  • Saves not working properly
  • Weapons becoming black boxes
  • Screen tinting issues
  • Crashes on newer devices

Requested features

4 requests
  • Add multiplayer support
  • Implement more control customization options
  • Port the entire Marathon trilogy
  • Provide support for custom maps and mods

UNDOOMED

Reported bugs

5 issues
  • Levels randomly resetting
  • Platforms/paths becoming inaccessible
  • Enemies spawning in unreachable areas
  • Invincibility issues after respawning
  • Screen flipping upside down

Requested features

5 requests
  • Add ability to look up and down
  • Introduce more weapon variety
  • Improve level generation and design
  • Implement a story mode
  • Add controller support

In-app purchases

10 purchases

Classic Marathon

One-time10
  • HD Mode$0.99
  • Master Chief Mode$0.99
  • Enhanced Reticules$0.99
Show 7 more
  • Just a tip$0.99
  • Not the smallest tip$1.99
  • A good tip$2.99
  • A pretty good tip$4.99
  • An excellent tip$7.99
  • The best possible tip$12.99
  • Better than the best tip$20.99
1 purchases

UNDOOMED

One-time1
  • Premium$2.99

Questions

Is Classic Marathon free?
Classic Marathon is free to download, with in-app purchases available.
Is UNDOOMED free?
UNDOOMED is free to download, with in-app purchases available.
Which has better reviews, Classic Marathon or UNDOOMED?
Classic Marathon is rated higher. Classic Marathon averages 4.5 out of 5 from 630 ratings, while UNDOOMED averages 4.3 from 1.6K ratings.
Do Classic Marathon or UNDOOMED have ads?
UNDOOMED shows ads; Classic Marathon does not.
Which is updated more often, Classic Marathon or UNDOOMED?
Classic Marathon ships an update every 2 months, and UNDOOMED every 3 weeks. Most recently, Classic Marathon was updated on November 1, 2026 and UNDOOMED on November 6, 2026.

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