Mobile mode

Joystick, action buttons and the HUD rearranged for a touch screen.

Acheron World runs on mobile with no app: it's the same page, with different controls. Touch mode turns on by itself when the browser is on a touch screen or when the window is 900 pixels wide or less.

If you need to force it, add ?mobile=1 at the end of the address to turn it on or ?mobile=0 to turn it off.

The controls#

Joystick (bottom left corner)#

Drag the circle to walk. Your character walks in the direction you point, and the command is re-sent while you hold. Release to stop. There's a dead zone in the center, so an accidental touch doesn't make your character walk off.

The joystick respects the camera rotation: up on the screen is always "away from you", not a fixed map direction.

Action buttons (bottom right corner)#

Three rows:

Three skill buttons, mirroring slots 1, 2 and 3 of the computer bar — with the same icon and the same name. Hold to repeat.
🧪 HP, 🧪 MP and ✨ SKILL. The skill button uses the active skill on the current target; holding it repeats.
⚔ ATTACK — the big button. One tap attacks the nearest living monster, up to 16 tiles away. Hold to keep hitting.

To change which skills appear on those three buttons, tap ✎ (or an empty button) and pick from the bar that opens. With the bar open, tapping a button that already has a skill closes the bar and casts the skill.

How tapping skills works:

With no target marked, the tap goes to the nearest living monster — while walking with the joystick, the one ahead is preferred. If it dies before the hit goes out, the skill goes to the next nearest.
With your thumb on the joystick: tapping a skill makes the character stop, cast the skill and walk again on its own if your finger is still on the joystick.
Skill on cooldown: the button flashes and the skill goes out by itself as soon as the cooldown ends.
Not enough mana for the skill: the "Not enough mana" notice shows and a basic attack goes out.
A new character starts with the strongest attack skills it can already use on the three buttons (Castle Siege skills such as Stern are left out).

Long press#

Hold your finger on a monster for about half a second: the target locks and your character attacks nonstop until you release. If you drag your finger, the gesture is cancelled.

System buttons (top right corner)#

☰ Menu — opens the MENU full screen: the main shortcuts at the top (Inventory, Char, Skills, Map, Guild, Shop), then the events with their live state and the other systems by category, as big buttons.
💬 Chat — expands the chat.

What changes on the screen#

The side columns shrink. Quests, Events and Party are hidden to free up space; use the menu to reach them.
The bottom bar is scaled down proportionally, but stays whole: orbs, potions, skills and experience.
The menu bar goes away; everything is in ☰.
In the central window, in landscape, the title goes away and the tabs sit in a single strip at the top — more screen left for the page. Wide tables become cards, one per row.
The chat is collapsed by default — only the last lines, no tabs and no typing field, and without stealing your touch. When expanded, it fills the whole width and grows to up to a third of the height.
The central window takes almost the whole screen, and while it's open the touch controls disappear — you can't attack by accident while sorting your inventory.
The browser stops pinch-zooming and scrolling the page by accident.

Tips for playing on mobile#

Use MU Helper. On a small screen, hunting by hand is tiring. Turn the Helper on, leave your potions configured and follow along.
Put the three skills you use the most in slots 1, 2 and 3 before leaving the computer — they're the only ones that show up on mobile.
Simple phone, or heating up? In Options → Graphics, choose Light phone: dynamic resolution, locked 30 fps and fewer effects (what changes). On entry-level phones the game already starts on it.
On a small screen, the long press on a monster is usually more comfortable than the ⚔ button.