So I recently discovered a fun tower defense game called YORG.io. You start off collecting crystals which will be the base "energy" you will use to build your other towers. From there you build stone mining towers, cannons, walls, etc in order to protect your base from waves of zombies. The cool thing is that they have a multiplayer version... You play head to head against someone else. You build up your base and you can even create a "zombie spawner" tower to attack them. Unfortunate part is that it seems this game isn't really that active. But if anyone wants to try out a multiplayer match, let me know! I'm still new but it's fun to play against a live person. Here is the game link: https://yorg3.io/ It is also on Steam for like $3 (super small file size and no ads). Post below or send me a convo and we can start a lobby and play.