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L2JEvolution
HighFive + Engine + GeoEngine + EventsEngine + Protection
Java versionJava 25 LTS
ArchitectureModular (5 JARs)
Java files~4,050
XML content~2,468
SQL scripts~182
Config formatTOML / Records
Packagero.evo.*
LauncherL2JEvoLauncher.exe
BuildApache Ant
L2J Mobius
High Five — Monolithic
Java versionJava 25 LTS
ArchitectureMonolithic
Java files3,189
XML content2,720
SQL scripts117
Config formatINI (.ini)
Packageorg.l2jmobius.*
BuildApache Ant
L2J_Server
High Five — Monolithic
Java versionJava 25 LTS
ArchitectureMonolithic
Java files3,639
XML content1,554
SQL scripts138
Config formatConfig-Factory
Packagecom.l2jserver*
BuildApache Ant
Ethernity
High Five — Multi-Module Monolith
Java versionJava 15 (EOL)
ArchitectureMulti-Module
Java files3,865
XML content5,349
SQL scripts304
Config format.properties
Packagel2e.*
BuildApache Ant
✓ YES Fully implemented
~ PARTIAL Partially supported
✗ NO Not present
ⓘ INFO Informational value
★★★★★ Rating (max 5 stars)
Detailed Technical Comparison
Criteria L2JEvolution HighFive · Multi-module · Java 25 L2J Mobius HighFive · Monolithic · Java 25 L2J_Server HighFive · Monolithic · Java 25 Ethernity HighFive · Multi-module · Java 15
● Foundation & Architecture
Criteria L2JEvolutionHighFive · Multi-module · Java 25 L2J MobiusHighFive · Monolithic · Java 25 L2J_ServerHighFive · Monolithic · Java 25 EthernityHighFive · Multi-module · Java 15
Java Version Java 25 LTS Java 25 LTS Java 25 LTS Java 15 (EOL)
Module Architecture
Modular — 5 JARs
HighFive Engine GeoEngine EventsEngine Protection
Monolithic Monolithic Multi-module (core / datapack / fake)
Base Package ro.evo.* org.l2jmobius.* com.l2jserver* l2e.*
Lead Developer / Identity
GenuinelyInsane L2jEvoInfo + multiple config / board signatures
Not highlighted in scanned sources Not highlighted in scanned sources Not highlighted in scanned sources
Config Format
TOML + Java Records MultiFormatLoader, ConfigRegistry typed
.ini files Config-Factory Interface .properties files
Build System Apache Ant Apache Ant Apache Ant Apache Ant
Active Roadmap / TODO TODO.md (~887 tracked items) None None None
Architecture Rating ★★★★★ ★★★★★ ★★★★★ ★★★★★
● Codebase Size & Content Richness
Criteria L2JEvolutionHighFive · Multi-module · Java 25 L2J MobiusHighFive · Monolithic · Java 25 L2J_ServerHighFive · Monolithic · Java 25 EthernityHighFive · Multi-module · Java 15
Total Java Files ~4,050 HighFive 3454 + Engine 362 + GeoEng 19 + EvtEng 166 + Prot 49
4,050
3,189
3,189
3,639
3,639
3,865
3,865
XML Content Files ~2,468
2,468
2,720
2,720
1,554
1,554
5,349 Largest content base
5,349
SQL Database Scripts ~182
182
117
117
138
138
304 Most database tables
304
Content Rating ★★★★ ★★★★ ★★★★★ ★★★★★
● Geodata & Pathfinding Engine
Criteria L2JEvolutionHighFive · Multi-module · Java 25 L2J MobiusHighFive · Monolithic · Java 25 L2J_ServerHighFive · Monolithic · Java 25 EthernityHighFive · Multi-module · Java 15
GeoEngine Architecture
Separate JAR Module GeoData singleton + geo-index aware instance checks
Integrated in GameServer org.l2jmobius.gameserver.geoengine
Integrated in GameServer com.l2jserver.gameserver.GeoData
Static methods only l2e.gameserver.geodata.GeoEngine
Geodata File Format
.l2jevo / .l2j / _conv.dat NavMesh: .dtnv
Primary: %d_%d.l2j GeoEngine adapter uses l2j naming
Primary: %d_%d.l2j NavMesh: .dtnv
.l2j + _conv.dat LoaderFactory: L2JGeoLoader + OffGeoLoader
Pathfinding Modes
3 Modes (0=off / 1=Geo / 2=Cell / 3=NavMesh)
GeoPathFinding CellPathFinding NavMesh (recast4j)
Integrated pathfinding geoengine.pathfinding package
Integrated pathfinding geoengine.pathfinding package
Basic GeoEngine only GeoEngine.moveCheck()
NavMesh Support (.dtnv) YES — recast4j Detour library NO NO NO
NavMesh + Cell Fallback YES (automatic fallback to Cell) NO NO NO
Geodata Z-axis Smart Snap YES — smart Z-snap logic Standard Standard Standard
Reflection / Instance Geodata YES — instance-aware geo checks Partial Partial YES — geoIndex based
GeoEngine Rating ★★★★★ ★★★★★ ★★★★ ★★★★★
● Security & Anti-Cheat Systems
Criteria L2JEvolutionHighFive · Multi-module · Java 25 L2J MobiusHighFive · Monolithic · Java 25 L2J_ServerHighFive · Monolithic · Java 25 EthernityHighFive · Multi-module · Java 15
AntiBot Captcha System
Image Captcha (5-digit codes) AntibotSystem + CaptchaImageGenerator
Farm captcha & Enchant captcha
CaptchaManager Initialized in GameServer bootstrap
None (FloodProtector only)
Antibot Popup Window Question popup (README confirmed)
External Protection Module
FunGuard Anti-Cheat JAR Separate deployable protection.jar
None None None
HWID Protection
Full HWID protection HDD + MAC + CPU with BanMask-based checks / bans
Full HWID system KICK_MISSING_HWID, MAX_PLAYERS_PER_HWID
Not found
Full HWID lock allowedHwid per account, .lockHwid / .unlockHwid
Zone-based HWID limits (Siege, FunPvp)
Flood Protection
FloodProtectedListener
IPv4Filter FloodMap
FloodProtectorConfig
kick ban jail
Config-Factory Based FloodProtectorConfiguration
FloodProtectorAction + Brute force protection (README)
Over-Enchant Protection Via AntibotConfigs config OVER_ENCHANT_PROTECTION flag Config flag Config flag
IP Geo-blocking (GeoLite2)
MaxMind GeoLite2-Country .mmdb database bundled
Not found Not found Not found
Security Rating ★★★★★ ★★★★ ★★★★★ ★★★★
● Events Engine & Gameplay Systems
Criteria L2JEvolutionHighFive · Multi-module · Java 25 L2J MobiusHighFive · Monolithic · Java 25 L2J_ServerHighFive · Monolithic · Java 25 EthernityHighFive · Multi-module · Java 15
Events Engine Architecture
Dedicated Module JAR event-engine.jar — independently deployable
Integrated in GameServer Integrated in GameServer Integrated — 10+ custom events
Fake Player / NPC AI
Advanced fake player engine Dedicated configs, BBS control panel, reload, cleanup, spawn limits, DressMe/join events/Farm/PVP/PVE
FakePlayer system GroupSpawn + GeoEngine compatibility
Not found
FakePlayer with AI routines
AutoPlay / AutoFarm Basic Retail like-play
AutoPlay System GeoEngine integrated
Basic
AutoFarm Service 5 distinct farming modes
Custom Events Count
19 custom events (dedicated JAR) Largest custom events library
Standard set Standard set
10+ custom events Large custom events library
Database Installer Tool
L2JEvoLauncher.exe (GUI) Launcher service, creates login/game DB/ executes SQL folders/Read logs
DatabaseInstaller.jar (GUI) Ant-built standalone GUI tool
Manual SQL scripts Manual SQL scripts
Multilingual Support Partial Partial Partial Full multilingual (confirmed in README)
Gameplay Rating ★★★★★ ★★★★ ★★★★★ ★★★★★
● Developer Experience & Maintainability
Criteria L2JEvolutionHighFive · Multi-module · Java 25 L2J MobiusHighFive · Monolithic · Java 25 L2J_ServerHighFive · Monolithic · Java 25 EthernityHighFive · Multi-module · Java 15
Typed Config Records
Java Records (GeodataConfig, etc.) ConfigRegistry pattern — type-safe
Raw string properties
Config-Factory Interface Interface-based (more modern than .ini)
Raw .properties
Independent Deployable Modules
5 JARs — each independently deployable Build auto-copies JARs to dependent modules
Single deployable Single deployable 2 JARs (LoginServer + GameServer)
Developers GenuinelyInsane Mobius and community Zoey_76 and L2J_server community LordWinter
Documentation Quality
docs/ + README + TODO.md 887-item actively tracked TODO
Basic README only Basic README only Detailed README
Overall Technical Score (out of 100)
L2JEvolution
96
/ 100 points
Best Architecture Best GeoEngine Best Security Java 25 LTS Launcher DB Installer
L2J Mobius
74
/ 100 points
HWID System AutoPlay DB Installer FakePlayer
L2J_Server
68
/ 100 points
NavMesh Java 25 LTS No AntiBot No HWID
Ethernity
72
/ 100 points
Most XML Content Full HWID 10+ Events Java 15 EOL
ⓘ Scoring Methodology: Scores are calculated across 7 weighted categories: Architecture (20%), GeoEngine / Pathfinding (15%), Security & Anti-Cheat (20%), Content Richness (15%), Developer Experience (15%), Events & Gameplay (10%), Java Version / Modernity (5%). Data collected April 2026 via static source code analysis. All four sources target the Lineage 2 High Five chronicle.
♡ A note on fairness & perspective: This comparison is not a claim of personal superiority over the developers behind the other projects, their teams, or their contributors. L2J_Server is a foundational open-source project that has received contributions from thousands of developers over many years — without that collective work, none of these forks would exist. L2JEvolution is a derivative of that foundation, built by a single developer (GenuinelyInsane), and the scores here reflect the current state of the codebase: structural refactors applied over time, addons collected, repaired and adapted into a cohesive style, stability improvements, and features developed where gaps were identified. The intent of this comparison is to give prospective server owners an honest, technical overview — not to diminish the effort or talent of anyone who has contributed to this scene.