Topic: Start doing some advertisement
You can't rely alone on Steam to bring new players. Start putting some of your proceeds(while you still have some) into ads.
http://MassivelyOP.com might be a good site to start. They have very loyal followers who have AdBlock disabled.
You can also launch a community funded ad budget to help cover the costs in exchange for titles and ***.
Reinstate the *** referral program.
Create Perpetuum banners for the players to use on other forums as signatures.
Scrap this T5 nonsense as it adds nothing to the game and is a waste of your time. We have enough tiers already. Work on additional bots instead and spend some time learning how your game works.