OpenLieroX

Mods, maps, skins, in delicious upscaled 640x480 resolution (almost HD!).
Online, LAN, and local gameplay with bots are supported.
It even has built-in IRC chat.
Best played with a gamepad. Two-player mode requires two gamepads.
Don't expect to find anyone online, the community has long been dead.
Source code: https://sourceforge.net/projects/libsdl-android/files/apk/OpenLiero/