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

Babeltime

Other rivals

Portfolio

Free 4
4
apps
Games4

Last updated

Grow Castle!

v1.50.14

9mo 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)

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)

Babeltime

known forRealm Defense: Hero Legends TD

1 app4.4Games

Both apps target the tower defense strategy audience through hero-centric progression loops and freemium monetization models.

Contenders(10)

AI Games FZ

known forKingdom Clash:Medieval Defense

1 app4.6Games

Both titles compete for the same tower defense and strategy audience, utilizing guild-based social mechanics to drive long-term retention.

Animoca Brands

known forCrazy Defense Heroes: RPG TD

1 app4.8Games

Both titles compete for the same tower defense strategy audience by utilizing persistent progression mechanics and social guild structures to maintain player engagement.

CTC Technology

known forStick Hero - Tower Defense

1 app4.6Games

Both apps compete for the same tower defense strategy audience, with Grow Castle! focusing on guild-based progression while Stick Hero targets casual players through stickman-themed arcade mechanics.

Funovus

known forWild Castle: Tower Defense TD

1 app4.8Games

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

Happy Dream

known forKings Defender: Tower Defense

1 app4.8Games

Both titles target the tower defense strategy audience by combining hero-based combat with idle progression mechanics. They compete directly for players seeking long-term progression loops within the arcade category.

Jongha Back

known forHERO WARS Defense

1 app4.6Games

Both titles target the tower defense category by centering gameplay on hero progression and base defense. They compete for the same player base by offering overlapping mechanics for upgrading units and managing defensive structures.

SeungHo Chung

known forUnderdark:Defense

2 apps4.4Games

Both titles target the same tower defense audience by offering progression-based gameplay loops, with Underdark:Defense capturing players through a more frequent content cadence.

STORMX

known forIdle Kingdom Defense

1 app4.5Games

Both titles target the same strategy-focused tower defense audience, competing for time share through hero-management loops and castle-defense mechanics.

TERAHYPE - AR, GPS & Fantasy RPG + Casual Games

known forBoom Castle: Tower Defense TD

1 app4.3Games

Both titles target the tower defense strategy audience with hero-based progression and idle mechanics, creating direct competition for player time.

Zygle Games

known forBattle Strategy: Tower Defense

1 app4.3Games

Both apps compete for the same tower defense audience by requiring players to manage base protection and strategic resource allocation. They overlap in the core loop of enemy destruction and defensive structure management.

Same space(10)

Boss Fish

known forHero Defense: Zombie War

1 app4.6Games

Hero Defense: Zombie War targets the casual survival strategy player by focusing on high-density combat and one-hand controls.

Century Games Pte

known forKingshot

1 app4.3Games

Kingshot competes for the same strategy-focused audience by using survivor role allocation to anchor daily retention, similar to the hero progression loop in Grow Castle!.

FUNFLY PTE

known forLast War:Survival

1 app4.6Games

Last War:Survival targets the same strategy-oriented player base but replaces passive base management with a high-octane lane-based combat loop.

HandyGames

known forTownsmen - Medieval Strategy

1 app4.3Games

Townsmen - Medieval Strategy shares the base-building and resource management interest of the Grow Castle! audience but focuses on non-violent production chains.

Hong Kong Ke Mo software Co.

known forAge of Origins:Tower Defense

1 app4.1Games

Age of Origins: Tower Defense shares the hybrid strategy-tower defense DNA of Grow Castle! while scaling through a 3D topographical world map.

Kevin Ghori

known forSquad of Heroes: Defense

1 app0.0Games

Squad of Heroes: Defense competes for the strategy RPG audience by blending roguelite dungeon exploration with idle defense mechanics.

ONDI TECHNOLOGY JSC

known forKingdom War: Tower Defense TD

1 app3.9Games

Kingdom War: Tower Defense TD targets the same fantasy-themed strategy audience as Grow Castle! through a 2D cartoon tower defense loop.

TAP4FUN (HONGKONG)

known forKingdom Guard:Tower Defense TD

1 app4.5Games

Kingdom Guard: Tower Defense TD appeals to the same strategy audience by replacing traditional resource management with a merge-to-upgrade unit progression system.

Voodoo

known forCastle Raid!

1 app4.3Games

Castle Raid! captures the casual strategy segment by using a tactile grass-cutting mechanic to control army pathing instead of static tower placement.

Wildlife Studios

known forCastle Crush: Clash Cards Game

2 apps4.8Games

Castle Crush: Online Strategie overlaps with the strategy audience by using card-battling mechanics that function as a faster-paced alternative to tower defense.

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

See methodologyContact support

Data licensed under CC-BY-NC 4.0