AionCore Download 1.19.0
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How to install AionCore on Windows

In 30 seconds

Four steps: download, get Npcap, open AionCore and open the game. Below are the Windows warning and what to check if the meter shows no numbers.

Step by step

  1. Download the installer. Open the downloaded file. If the browser blocks the download, choose Keep.
  2. Get Npcap. The meter needs Npcap to read the network. Install it before opening, if you do not have it yet.
  3. Open AionCore. Open AionCore from the Start menu. The first time, the first-run setup shows the usage and data notice and asks for your language and region; connecting Discord is optional. After that, the icon stays in the Windows tray.
  4. Open the game and fight. The top bar appears over the game, and the meter on the first hit. Ctrl+Alt+M shows or hides the meter, and Ctrl+Alt+D hides or shows everything.

Download installer

Before installing

  • Windows 10 or 11, 64-bit (Required). On Windows 10, version 1809 or newer. 32-bit versions and Windows 7 are not supported.
  • Npcap (Needed). The driver that lets the meter see network traffic on Windows. The AionCore installer does not install Npcap: download it from the official site (npcap.com) and check WinPcap API-compatible Mode and Support loopback traffic.
  • WebView2 (Needed). The Microsoft component that draws the meter's windows. It already comes with Windows 11; if it is missing, the installer warns you.
  • Administrator permission (Optional). Not requested by default. For the bar and overlays to hide in the game menus using the Alt and Esc keys, turn on Open AionCore as administrator in Settings: only those two keys are read, with the game in the foreground, and nothing is recorded or sent. Without administrator rights, the game cursor rule applies.
  • Aion 2 in borderless window mode (Recommended). In exclusive fullscreen the meter does not appear on top.

The Windows warning when you open the installer

Windows may show “Windows protected your PC”. Click More info and then Run anyway.

On Windows 11, if Smart App Control is on, it blocks the installer with no Run anyway option, because the file has no digital signature. There is no way to allow just AionCore: turning it off, in Windows Security › App & browser control, is up to you.

My antivirus flagged the installer. Is it a virus?

No. The program does not have a signing certificate yet, so some antivirus programs distrust any new file. Check the SHA-256 on the Download page.

Verify the file

If the meter shows no numbers

Why does it need Npcap?

Npcap is the driver that lets a program see network traffic on Windows. It is the same one Wireshark uses.

Can I use it with a VPN or a game booster?

Sometimes. Some change the network route and the meter does not see the fight. Reinstall Npcap with Support loopback traffic checked, then look at Settings › Help and diagnostics › Capture health.

Does the bar appear with the game in fullscreen?

In borderless window mode, yes. In exclusive fullscreen, Windows does not let any window appear on top of the game, so the bar, the meter and the radar do not show. Use borderless window mode.

Why does it ask for administrator rights?

The AionCore installer does not ask for administrator rights: it installs only for your user. Npcap's installer does, because it installs a driver. AionCore opens without administrator rights; in Settings, Open AionCore as administrator (Windows asks for permission) lets the hide-in-game-menus feature read the Alt and Esc keys, only those two. If Npcap is restricted to administrators, the meter offers Reopen as administrator, for that launch only; to avoid needing it, install Npcap without restricting the driver to administrators.

All questions · DPS meter

The Terms of use changed on Oct 17, 2026: on the ranking, presence, the character name and fight details now start on, each player's combat power shows next to the class, anyone who shows their name has a public profile, which also starts on, and the supporter badge now also shows on the profile, with the month and year the person started supporting. The profile now also shows the game data that appears in the inspection (equipment, titles, legion, Arcana, Daevanion and the count of each type of praise) and, if you turn it on in the meter, your build. This also applies to people who already had an account and had never left the ranking or hidden their name: whatever you had not turned off is already on. In My account you can hide your name, the badge or the game data, turn off the details or the profile, or leave the ranking; without an account, use the form on /ranking. All for free. The Support terms also gained section 4.11, on the party applicant card, which applies only to supporters. Their section 4.10, which also applies only to supporters, now also puts the supporter badge in the AionCore Meter of other players who have you on their meter list, on by default since October 17, 2026, including for people who were already supporters and even before you have the meter version that adds the badges: continuing to use the account or the meter after this notice, or clicking Accept in that meter version's window, counts as acceptance, and anyone who doesn't want it turns the badge off in My account (or in the meter, starting with that version), for free, without losing their support. Read the Terms of use