I think we can't share apks here but you can mod yourself one.
Download an apk from a website like apkpure or others, install apktool (it's really easy), decompress the apk with the following command in the command prompt: "apktool d Nameofaethric.apk". Now you'll have a folder of the apk unzipped (called lAethric or something), in the assets folder you'll file a lot of .js files, one of them is called either app....js (there are many numbers) or game....js. Copy the name of the file and delete it, then copy the app3ed96eacc7e587045f23.js file from MegaAethric and paste it in the assets folder (of the unzipped apk), then rename the file with the name of the file you've deleted. Then execute the command: "apktool b ./Aethric", you'll find in the Aethric folder, in the dist folder a new apk, but it's unsigned. To sign it it's a bit more difficult and I didn't understand how to sign it using windows, so I did it in a virtual machine of kali Linux where i knew how to do it. In Kali you have to execute the command "jarsigner -keystore aethric.keystore -verbose app.apk mega", replace app.apk with the path of the file and aethric.keystore with the path of the keystore, it will ask you a password, it is aethric. Then you can execute the command "apksigner sign --ks /aethric.keystore app.apk",use the path of the keystore. If you can't find an apk of the original game you can try on apkpure, apkposts, personally i downloaded it from here
https://apkcombo.com/hero-of-aethric-classic-rpg/com.avalon.rpg/download/apk?code=410&fp=63180a0a20a1a08326ff9495d7d966a2&from=cf&iat=1692723390&ip=95.235.109.95&lang=it&ref=https://cdn.androidcombo.com/com.avalon.rpg/Hero of Aethric | Classic RPG_1.2.10_apkcombo.com.apk?ecp=Y29tLmF2YWxvbi5ycGcvMS4yLjEwLzEwMjA0LmM1N2NiZmI1MjBjMDNiYThlMGEzMzAxMTMyOTFmNWE3MTI0NzkyYmIuYXBr&sig=b26b6c9d88685734e68a48763cfe8328&size=147944450&source=cdn&version=latest
If you want to run aethric on windows just do the steps until you replace the game/app.js with the modded one, then you have to find the bundle file in the assets folder (I can't remember the file extension), change its extension in .html, then make a link where you want, like in the desktop and you can play it.
Sorry for english errors