Comparison

Doom Simulator vs Grow Mergemon Masters

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

Head to head
About

Doom Simulator

Embark on a post-apocalyptic journey to find your missing sibling. Make choices that shape your story, customize your character, and battle enemies. Discover companions, pets, and mini-games in this adventure.

Highlights
  • Interactive storyline with player choices
  • Customizable character designs
  • Exciting boss battles
  • Diverse collection system
  • Buddy and pet system
  • Variety of mini-games
Read full description

After waking from a deep slumber, you find yourself the only survivor in this shelter. Now you have to survive in this post-doomsday and embark on an unknown journey to find your missing sibling! During the journey, you’ve got endless choices to make and each of them may bring you a completely different story! You can customize your own look and experience exciting boss fights. You may meet talented buddies and adopt loyal pets. Moreover, our diverse collection system and interesting mini-games will never make you bored! Feeling excited? Start your adventure now to solve the puzzle! ▶What’s the story? You awaken from a deep slumber, surrounded by dead silence. It seems like you are in a shelter but no vital signs are shown from other resting chambers... People around you are dead and your sibling is missing. There is no time for you to be scared or desperate. You decide to pick up your weapon and embark on an unknown journey! The world outside is full of danger – mutated animals, robber exiles, infected zombies-like humans and invisible plots... However, there is also warmth and love on the way – buddies, pets, amazing encounters and a stronger yourself… ▶What makes the game special? ● An interactive storyline based on your different choices. ● Customized character designs and the thrill of uncertainty. ● Exciting battles with various bosses. ● A diverse collection system including weapons, skins, events and so on. ● Creative buddy and pet designs enrich your game experience. ● A variety of interesting mini-games. Who is behind the catastrophe? Could you rescue the people you love? What stories will you create? What adventure will you encounter? Start your mystery journey now and solve the challenging riddle! —————— Contact Us Facebook: https://www.facebook.com/Doom-Simulator-103152039078398 Discord: https://discord.gg/92YHgPUDNq

About

Grow Mergemon Masters

Embark on an idle merge RPG adventure where you tame and evolve monsters. Strategically use their skills, collect trainer skins, and conquer dungeons and infinite towers. This game offers offline play for continuous monster training and battling.

Highlights
  • Merge and craft stronger monsters
  • Utilize diverse Mergemon skills strategically
  • Collect various trainer skins
  • Explore habitats and tame monsters
  • Conquer dungeons and collect runes
  • Challenge the infinite tower
Features
Read full description

Pixelstar Games Idle Merge game ' Grow Mergemon Master' has arrived! Merge, collection and action Explore various habitats to taming monsters! And be the best master trainer! [Features] - Merge and Craft Stronger monster - Use various skills of the Mergemon according to strategy. - Collect various trainer skins - Explore the habitat and taming the monsters. - Conquest Dungeon. Collect Rune - Demonstrate your strength in an infinite tower! # This game does not require wifi (internet). # This game is a synthesis + action game.

Screenshots

Doom Simulator4 screens
Grow Mergemon Masters4 screens

Verdict

The call

The clearest difference is review sentiment: Grow Mergemon Masters at 67% against Doom Simulator's 0%. Doom Simulator's advantage is update cadence (weekly vs every 3 months). On price, ads, in-app purchases and monetization model 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. Doom Simulator sells 8 one-off in-app purchases and Grow Mergemon Masters sells 12 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Doom Simulator ships an update weekly, Grow Mergemon Masters every 3 months. The most recent releases landed on October 21, 2026 and October 17, 2026 respectively.

Scorecard2 real differences · 8 level
Doom Simulator versus Grow Mergemon Masters: the parameters behind the verdict, then further details
ParameterDoom SimulatorGrow Mergemon Masters
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews0.0% of reviews66.7% of reviews — better
Number of ratings—1 — better
Update frequencyWeekly — betterEvery 3 months
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better13.0
Further details — not scored
Size150 MB171 MB
Age rating12+9+
DeveloperICLOCKWORK PTE. LTD.gitae park

Customer experience

Doom Simulator

Written reviews3 reviews
Positive0.0%
Neutral33.3%
Negative66.7%

Grow Mergemon Masters

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

8 purchases

Doom Simulator

One-time8
  • First Purchase$0.99
  • 20 Energy Cubes$1.99
  • 100 Energy Cubes$4.99
Show 5 more
  • No Ads$6.99
  • Ad-blocking$6.99
  • Battle pass$9.99
  • 200 Energy Cubes$9.99
  • New Battle pass$9.99
12 purchases

Grow Mergemon Masters

One-time12
  • Beginer Pack$2.99
  • Level Pack$4.99
  • Level Pack 2$9.99
Show 9 more
  • STARTER PACK$9.99
  • ADS PACK$9.99
  • Light Dark Pack$19.99
  • Fire Pack$19.99
  • Leaf Pack$19.99
  • Ice Pack$19.99
  • Skin Pack$19.99
  • Cristal Pack$19.99
  • PREMIUM PACK$49.99

Questions

Is Doom Simulator free?
Doom Simulator is free to download, with in-app purchases available.
Is Grow Mergemon Masters free?
Grow Mergemon Masters is free to download, with in-app purchases available.
Do Doom Simulator or Grow Mergemon Masters have ads?
Both Doom Simulator and Grow Mergemon Masters show ads.
Which is updated more often, Doom Simulator or Grow Mergemon Masters?
Doom Simulator ships an update weekly, and Grow Mergemon Masters every 3 months. Most recently, Doom Simulator was updated on October 21, 2026 and Grow Mergemon Masters on October 17, 2026.

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