[ Game Systems ]
41 ENTRIES[UPDATED - 2026-07-29]
RELL Seas is built on deep, interconnected game systems - blacksmithing, ship customisation, the progression and class systems, Haki, jail, world events, and more. Each card jumps into a full mechanic breakdown.
[Adventure Dex]The Adventure Dex shows information related to your adventuring, and can also help to dictate where events happen.
Ships
[Basic Sail]Basic Sail is a ship customization part in RELL Seas that displays crew identity and faction style on a ship. Sails are tied to crew banners, visual identity, and ship personalization.
World Events
[Battlegrounds]Battlegrounds is a free-for-all combat gamemode accessible from the [GAMEMODES] menu in RELL Seas. It features open, infinite combat on a dedicated arena map, comparable to traditional fighting game arenas. Players can join and leave freely without affecting their main RPG character progression.
Economysystem
[Blacksmithing]Blacksmithing is a core progression system in RELL Seas that allows players to upgrade their weapons up to 20 times and add powerful enchantments. Each upgrade step requires specific materials gathered from exploration - and the materials rotate randomly, incentivizing players to hunt different wildlife and mine various resources.
Economysystem
[Blueprints]Blueprints are discovery-based crafting knowledge in RELL Seas. Players do not begin with every recipe; documented pre-release coverage connects new recipes to exploration, bosses, raids, and encounters with enemy crews.
system
[Camp Event]Camp Event is a land event in RELL Seas where players fight a small group of camp enemies for early combat practice and event rewards.
Ships
[Cannon]Cannon is a ship combat system in RELL Seas that gives ships their main ranged offense and boarding pressure. Cannons are used for defense, ship-to-ship damage, and direct boarding plays during sea fights.
system
[Character Customisation]The page provides documentation on character customization options within the game system.
Progressionsystem
[Class System]The Class System page tracks the published structure behind combat loadouts. Current footage confirms customizable skill keys, switchable skills, and combat posters, while exact starting classes and class-specific stat traits remain unpublished.
[Craftsman Dex]The Craftsman Dex provides details about items and materials discovered during exploration, with integrated mining and woodcutting progression tracking.
World Events
[Crew Battles]Crew Battles is a team-based warfare gamemode in RELL Seas, accessed from the [GAMEMODES] menu. Crews engage each other across expansive maps featuring naval vessels and environmental elements - making ship combat a central part of this mode.
system
[Crews]Crews are player and NPC group systems in RELL Seas that connect ship identity, faction reputation, naval combat, and official crew recognition. Player crews use unique names and custom flags, NPC crews support ship operation, and official crew status is being introduced through a Council of Piracy affiliation path.
system
[Den Den Mushi]Den Den Mushi is the RELL Seas communication system built around a talking snail item for calling, texting, and receiving Snail Phone events across the same server.
Progression
[Dexes]Dexes are four specialized in-game catalogs for exploration, fishing, recipes, and discovered materials. Each tab exposes a different set of fields while unreleased catalog entries remain pending.
Ships
[Figurehead]Figurehead is a ship customization part in RELL Seas that changes the bow of a ship and may come from crafting. Figureheads are decorative front pieces that can make a ship more recognizable.
[Fishing Dex]The Fishing Dex is a full catalog of every fish species catchable in RELL Seas. It tracks caught fish by name, location, weight, and rarity - and feeds into the broader fishing progression system. Completing the Fishing Dex is one of the three sources of progression points in the fishing system, alongside actively catching fish and hunting sea wildlife.
[Gamemodes]Alternative play modes available outside the main RPG world, accessed via the [GAMEMODES] icon in the menu.
Worldsystem
[Illnesses]Illnesses are negative status conditions in RELL Seas that can affect characters through weather exposure or infection. Current source data names Common Cold and Flesh Rot as known illnesses.
system
[Jail System]The Jail System is a multi-tiered punishment mechanic for players who commit crimes - attacking civilians, killing NPCs, or engaging in piracy on Marine-protected islands. Rather than a simple respawn penalty, RELL Seas features three escalating levels of imprisonment, with the deepest being Hades Asylum - the game's equivalent of Impel Down from One Piece. Importantly, imprisonment is not a dead end: the Ghoul system allows captured pirates to fight their way out of Hades Asylum from the inside.
World Eventssystem
[Land Events]Land Events are dynamic, faction-driven encounters that spawn across every island in RELL Seas. Rather than static quests, these are living conflicts between the game's 40 pirate factions - battles you stumble upon, sides you choose, and relationships you build or destroy. Every land event is a progression opportunity: rewards include XP, items, money, and reputation changes with the factions involved.
Progression
[Leveling]The game features three stat categories: Stat points, Haki points, and Talent points. The system is nonlinear, allowing progression through multiple activities without level restrictions.
system
[Marines]The Marine system lets players enlist in the World Government's naval force. Marines operate as an enforcement faction against pirates - arresting criminals, protecting civilians, and participating in Marine Warship sea events. Joining the Marines is a character identity choice that changes your faction alignment, reputation trajectory, and which sea events you engage with.
[Missions]Missions are the RELL Seas system for quest objectives, Sea Two and Sea Three content placement, mission queues, requirements, and rewards.
Shipssystem
[Ocean Zones]Ocean Zones organize major sailing environments and hazards in RELL Seas. Current evidence supports named sea identifiers, sky content in C3, extensive underwater content in C4, and hazards such as tsunami areas and sinkholes, but it does not support a simple invented level ladder.
system
[Progression System]RELL Seas features a non-linear progression system that deliberately breaks from the traditional grind-heavy formula of 'do the same quest 20 times to level up'. Instead, virtually every activity in the game contributes to your character's growth - you level up by doing what YOU enjoy.
World Events
[Random Events]"In RELL Seas, one of the main ways to progress is by doing events, which are random encounters that give you XP, items or money"
World Events
[Ranked]Ranked is a structured 1v1 duel gamemode in RELL Seas, accessed from the [GAMEMODES] menu. Each player has three lives per match. The mode may feature tiered rankings and team variants, though full details are pending publication.
[Recipe Dex]A cooking-focused repository system that tracks meal and potion recipes discovered throughout gameplay, displaying origin sources, preparation counts, and unlocked item names.
system
[Reputation]"Reputation is a major part of RELL Seas. The player gains positives and negatives from having a good or bad reputation."
World Eventssystem
[Sea Events]Sea Events are dynamic, open-ocean encounters that trigger as players sail the seas of RELL Seas. From escorting cargo ships under attack to hunting legendary sea beasts, these events transform open-sea sailing from a travel mechanic into a gameplay loop of its own. With 7 confirmed sea event types - plus an entire layer of underwater events - the ocean is never empty.
Economysystem
[Selling & Market]Selling and trade support a merchant playstyle in RELL Seas. Pre-release material shows ships being used as restaurants and mobile businesses where players can sell food, buy rare materials, and trade with other crews.
[Settings]Settings can be accessed via the gears icon in the top-left corner, allowing players to adjust gameplay settings and customize control bindings.
Ships
[Ship Customisation]Ships in RELL Seas are not just transport - they are your home, your weapon, and your identity. Every ship can be built around a playstyle: a defensively armored iron-clad fortress, a lightning-fast Sloop with burst cannons, or a ramming Gallion built to smash through enemy hulls. Customization covers everything from hull material and cannon type to figureheads, crew, and living quarters. No two ships need to look or perform the same.
system
[Ships]Ships are the RELL Seas system for sea travel, ship ownership, spawn points, naval combat, sky-route travel, and crew movement.
[Sky Ship Battles]Sky Ship Battles are RELL Seas aerial ship encounters against NPC ships, confirmed in official dev notes as done.
Progression
[Stats]Stats are character progression choices gained through leveling. The published overview says a character cannot maximize every stat and that these stat investments do not directly change displayed damage values.
system
[Status Effects]Status effects are temporary conditions applied to players and enemies during combat. Enchantment-based effects are triggered by hitting a target with an enchanted weapon from the Blacksmithing system. One status effect - Dazed - is applied through base combat mechanics without any enchantment required.
Ships
[Steering Wheel]Steering Wheel is a ship control part in RELL Seas that lets a ship change direction across sea and air travel. It is the main control point for steering a vessel.
Ships
[Submarines]Submarines are the key to RELL Seas' deepest content. While surface ships rule the open ocean, the true treasures of the world lie in the deep - hidden caves, underwater dungeons, rare sea creatures, and sea regions inaccessible any other way. The submarine is not just a vehicle; it's a progression gate that opens up an entirely different layer of the game.
[UI Explanation]The UI Explanation system in RELL Seas documents the main interface, inventory tools, status bars, cooldown indicators, and ship controls shown during play.
World
[Weather]Weather is a world system in RELL Seas that changes traversal pressure, NPC behavior, illness risk, and sky-route encounters across the world.
Core system pillars
The systems split into a few pillars: a non-linear progression system where every activity levels you; a combat layer (class system, Combat Potentials); an economy (blacksmithing, blueprints, selling market); seafaring (ship customisation, submarines, ocean zones); and dynamic world events.
Frequently asked questions
What game systems are in RELL Seas?
RELL Seas has 41 tracked game systems - blacksmithing, non-linear progression, ship customisation, Haki, jail, world events and more.
How does progression work in RELL Seas?
Progression is non-linear: every activity (fishing, cooking, mining, woodcutting, combat) levels your character. Grow by doing what you enjoy. See the Progression System page for the full breakdown.
How do you upgrade weapons in RELL Seas?
Through the Blacksmithing system - you can upgrade weapons up to 20 times and add enchantments using materials gathered from across the world.