Central Star

Gem Drops & Alien Spawning
As of 2019-04-25, the center of the map in Team Mode periodically drops gems. Four days later, the gem drops were changed to Green Chicken aliens that dropped gems when killed, so teams would stop sitting there and acquiring free gems. Later on, the devs increased the strength and number of aliens, so fighting them became harder. In 2019-13-09 aliens in the middle do not grant any points or frags for killing them.

Aliens in Alpha Centauri Wars
Aliens also spawn in the center of the map in Alpha Centauri Wars (ACW), their strength increasing as the match goes on. Aliens typically target the closest ship or station, regardless of team. These aliens range from Chickens to Saucers.