OnceWorld

Contains adsIn-app purchases
4.9
2.17K reviews
10K+
Downloads
Content rating
Teen
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this game

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.

ā–¼ 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

ā–¼ 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.

ā–¼ 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.

ā–¼ Accessories

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

ā–¼ 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.



ā–¼ 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.

ā–¼ Monster Encyclopedia

Once defeated, monsters are added to the encyclopedia where their stats can be viewed.
Captured monsters will display a ā€œCaughtā€ mark.

ā–¼ Materials

Materials are divided into three categories:

Normal Materials
怀Used for equipment enhancement and trading.

Effect Materials
怀Provide passive bonuses simply by owning them.
怀Have a smaller carrying limit.

Key Items
怀Only one can be held.
怀Cannot be dropped or sold.

ā–¼ Items

Items that grant various benefits during adventures.
You can assign them to shortcut slots for quick use in the field.
Swap registered items using the arrow icon beside the item list.

ā–¼ Reincarnation

When your hero reaches the level cap, you can reincarnate.
Reincarnation resets your level but increases your level cap and available stat points, allowing for further growth.

ā–¼ Abyss Corridor

A ranked mode that can be played a limited number of times per day.
Clear each floor by defeating all monsters as fast as possible — faster times rank higher.
Treasure chests appear as rewards on each floor.
Only Save Slot 1 is eligible for ranking participation.

ā–¼ Arena

Watch monster battles.
Watch monster battles held several times a day.
Choose the strongest team from three teams and watch the battle.

Earn Arena Coins if your favorite team wins.
Try exchanging them for valuable materials at the Arena Shop.

ā–¼ About the Kin-Slayer Rite ā–¼

The Kin-Slayer Rite
is a ceremony in which the target pet’s kin-bond, level,
and accumulated experience are all returned to zero
in exchange for enhancing its base stats.

A monster that undergoes this rite will gain experience
at a slower rate thereafter.
Updated on
Dec 20, 2025
Available on
Android, Windows*
*Powered by Intel® technology

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, Personal info and 3 others
This app may collect these data types
Location, Personal info and 3 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.9
2.1K reviews
Tony Jackson
December 6, 2025
well I like the game so far. your character attacks automatically as soon as you come into attacking range of an enemy, and levelling progresses pretty fast. has the retro look and vibe, and many enemies are scattered around the multiple fields and are all of varying lvls. I haven't tried to play this offline yet, but I'm almost certain you can't. You can also capture monsters in the field, even boss monsters, and have them fight with you! All in all, I'd say this is an A tier work so far.šŸ‘
1 person found this review helpful
Did you find this helpful?
Dave Hall
December 10, 2025
this game is fun. it's a bit open and you will die a lot at first. it would improve if the level of enemies actually indicated its strength. some monsters will kill you with one hit but it's hard to determine which ones sometimes. also some things are still not translated or the translation isn't clear, but I assume that will improve with updates.
Did you find this helpful?
Noob 2.0
December 6, 2025
Its a decent fun singleplayer game, But as one of the first reviewers, i recommend the game being tad bit more action packed, maybe cause ive only started now but game seems tad bit bland, which makes it boring, aside from that, its going in a good direction, i recommend a sort of tutorial for some people thats optional, Edit: tried out pet feature, works nicely, and i see how to progress from copper to iron, its fun (I just beat zakron, at level 100)
2 people found this review helpful
Did you find this helpful?

What’s new

ver 0.9.9
Ahead of the major update, enhanced premium packs are now available.
Fixed a rendering issue that occurred on some devices.

App support

About the developer
PONIX, LIMITED LIABILITY COMPANY
info@ponix.work
1-11-12, NIHOMBASHIMUROMACHI NIHOMBASHIMIZUNO BLDG. 7F. CHUO-KU, ę±äŗ¬éƒ½ 103-0022 Japan
+81 80-1376-2075

More by PONIX

Similar games