Bouncy Ball Remastered icon
Grow Castle! icon
Stickman and gun icon
+1

YONG OK PARK

For casual and mid-core mobile gamers who favor incremental progression, strategy-based defense mechanics, and classic arcade-style gameplay.

Known forGrow Castle!
4apps4.3(913.2K)Games

Snapshot

Who is YONG OK PARK?

Delivering accessible 2D arcade and tower defense experiences for casual mobile gamers. Focused on high-replayability mechanics.

Target audience

CasualMid-core mobile gamers who favor incremental progressionStrategy-based defense mechanics

Active nemesis

AI Games FZ

Other rivals

Portfolio

Free 4
4
apps
Games4

Last updated

Grow Castle!

v1.50.14

7mo ago

Steady

Publisher DNA

What defines YONG OK PARK?

Publisher DNA

Primary focus

2D arcade and tower defense games

Scale

indie

Target audience

Casual and mid-core mobile gamers who favor incremental progression, strategy-based defense mechanics, and classic arcade-style gameplay.

Signature Patterns

  • Consistent use of 2D side-scrolling or tower defense mechanics
  • Emphasis on incremental progression and character upgrade systems
  • Freemium monetization model with a focus on in-app purchases for boosts
  • Targeting of casual-to-midcore audiences through accessible arcade gameplay
Steady

Portfolio momentum

Released 3 updates across 4 apps in the last 6 months, indicating a steady maintenance cycle for their existing library.

Last release 104d agoActive apps 4

Portfolio

What does YONG OK PARK ship?

Apps

4 apps analysed

Grow Castle! icon
Grow Castle!

Build your own castle! Great addictive tower defense game.

4.3(472K)
View Intel →

Hero promotion mechanics drive high-intensity daily session frequency

  • Online guild system creates social network effects that reduce long-term churn

Tightly focused on 2 markets (South Korea, United States).

Based on 1 of 4 apps with localized market data, more coverage rolling in as scans complete · last scanned .

Americas (1)

  • United States1 / 1

Asia-Pacific (1)

  • South Korea1 / 1

Core markets (1/1 apps)

South KoreaUnited States

Rivals

Who does YONG OK PARK compete with?

The rivals identified

Nemeses(1)

AI Games FZ

known forKingdom Clash:Medieval Defense

1 app4.6Games

Both titles compete for the same tower defense audience by utilizing clan-based social structures to drive long-term player retention.

Contenders(10)

Animoca Brands

known forCrazy Defense Heroes: RPG TD

1 app4.8Games

Both titles target tower defense players through progression loops, competing for time share within the same genre.

Babeltime

known forRealm Defense: Hero Legends TD

1 app4.4Games

Both titles target strategy gamers through tower defense loops, competing for the same player base via hero-progression mechanics and freemium monetization models.

CTC Technology

known forStick Hero - Tower Defense

1 app4.6Games

Both titles compete for the same casual strategy audience by utilizing tower defense mechanics as their primary engagement loop.

Funovus

known forWild Castle: Tower Defense TD

1 app4.8Games

Both titles target the tower defense strategy audience with idle-progression mechanics, creating direct competition for the same daily active user base.

Happy Dream

known forKings Defender: Tower Defense

1 app4.8Games

Both titles target the tower defense strategy audience by combining hero progression with idle gameplay mechanics.

Jongha Back

known forHERO WARS Defense

1 app4.6Games

Both titles target the tower defense category by centering gameplay on hero collection and base defense mechanics.

SeungHo Chung

known forUnderdark:Defense

2 apps4.4Games

Both titles target the same tower defense strategy audience and utilize freemium monetization, creating direct competition for daily active time.

STORMX

known forIdle Kingdom Defense

1 app4.5Games

Both titles target the tower defense strategy audience through hero-based progression loops, creating direct competition for daily active users.

TERAHYPE - AR, GPS & Fantasy RPG + Casual Games

known forBoom Castle: Tower Defense TD

1 appGames

Both apps target the tower defense strategy audience by combining idle progression mechanics with hero-based defense loops.

Zygle Games

known forBattle Strategy: Tower Defense

1 appGames

Both apps target the tower defense category, competing for the same player base through strategic base protection and weapon management mechanics.

Same space(8)

Boss Fish

known forHero Defense: Zombie War

1 app4.6Games

Targets the zombie-themed tower defense space with one-hand controls and boss-focused combat.

FUNFLY PTE

known forLast War:Survival

1 app4.6Games

Targets the same strategy audience through lane-based combat loops that prioritize daily active habits.

Hong Kong Ke Mo software Co.

known forAge of Origins:Tower Defense

1 app4.1Games

Shares the tower defense core but scales via 4X alliance warfare and 3D topographical map mechanics.

Kevin Ghori

known forSquad of Heroes: Defense

1 app0.0Games

Combines action RPG combat with roguelite progression for players seeking intense survival gameplay.

MY.GAMES B.V.

known forHustle Castle・Medieval Kingdom

1 app4.2Games

Shares the base-building and hero progression loop but focuses on medieval fantasy RPG combat.

TAP4FUN (HONGKONG)

known forKingdom Guard:Tower Defense TD

1 app4.5Games

Replaces traditional city building with merge-to-upgrade mechanics to drive unit progression within a tower defense framework.

Voodoo

known forCastle Raid!

1 app4.3Games

Offers a hypercasual alternative to tower defense through interactive grass-cutting mechanics that control army pathing.

Wildlife Studios

known forCastle Crush: Clash Cards Game

2 apps4.8Games

Blends match-three puzzle mechanics with card-battling to capture casual players seeking hybrid gameplay loops.

New entrants(1)

Gokraft Games

known forEmpire Defense: Rome TD

1 app4.8Games

Uses a handcrafted 3D tower defense loop to challenge players with tactical unit placement and hero management.

The Analyst's Read

The bottom line on YONG OK PARK

Bottom line

This publisher operates as a stable indie studio with a clear focus on classic 2D mechanics and long-tail engagement. Their ability to maintain a consistent, high-rated portfolio over several years demonstrates a strong understanding of their core audience's preferences.

Frequently asked questions

How many apps does YONG OK PARK publish?
YONG OK PARK has 4 apps tracked by Marlvel, primarily in the Games category.
What kind of apps does YONG OK PARK make?
YONG OK PARK's portfolio is concentrated in Games, with an average rating of 4.3/5 across rated apps.
What is YONG OK PARK's top app?
By review volume across the portfolio, Grow Castle! is YONG OK PARK's best-known app tracked by Marlvel.
In how many countries are YONG OK PARK's apps available?
Marlvel has tracked YONG OK PARK's apps across 2 countries.

What fed this analysis

Apps analyzed:
4
With full intel:
1
With overview:
4
Website scraped:
yes
Social presence:
no

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by YONG OK PARK, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “YONG OK PARK intelligence.” Updated 2026-05-07. https://marlvel.ai/publishers/yong-ok-park

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Data licensed under CC-BY-NC 4.0