OnceWorld is a simple and casual 2D solo-play RPG.
Relive the charm of classic MMOs from the good old days — now reimagined for mobile with easy controls and deep progression!
Level up, reincarnate, raise pets, awaken equipment, collect materials, and battle in the arena — all in one nostalgic adventure.

It’s an RPG that brings the essence of those mid-2000s MMORPGs to your smartphone, blending nostalgia with modern convenience.

▼ Stat Distribution

Distribute points into seven basic stats to develop your character.
Points are earned as your hero levels up.
To reset your distribution, you’ll need a special item.

Stat meanings:

VIT – Increases HP

SPD – Attack speed & number of strikes

ATK – Physical attack power

INT – Magic attack power & SP capacity

DEF – Mainly physical defense power

M.DEF – Mainly magical defense power

LUK – Evasion & Physical Critical

▼ Weapons & Armor

Equip one weapon and five armor pieces.
Wearing all five pieces of a matching set grants a set bonus.
Use the heart icon at the top-left to toggle your favorite gear display.

▼ Equipment Enhancement

Use materials obtained during your adventures to enhance your gear.
Each enhancement attempt has a success rate — failure consumes the materials, but the item itself will never break.
Some special items can increase success rates.

▼ Accessories

Accessories grant special effects when equipped.
Defeating enemies while an accessory is equipped will level it up, enhancing its effects over time.

▼ Magic

Spend SP to cast powerful spells.
Magic attacks cannot be evaded and there are no critical hits.

Certain rare materials may further amplify spell power.



▼ Monsters & Pets

By carrying a special material, you’ll gain the ability to capture monsters.
Captured monsters become pets that grow stronger as they fight alongside you.
Some monsters learn skills as they level up.
These skills can activate even without being summoned, as long as the monster is accompanying you.

Pet switching can only be done at the Pet Keeper in your hometown.
Feeding specific materials will raise a pet’s stats.

▼ Monster Encyclopedia

Once defeated, monsters are added to the encyclopedia where their stats can be viewed.
Captured monsters will display a “Caught” mark.

▼ Materials

Materials are divided into three categories:

Normal Materials
　Used for equ