OG version: only gun tower and no base no waves and enemies did not get progressively stronger
1.0: added slow tower and support class
1.1 added base and mini tower
1.2 added waves and made enemies get progressively stronger
1.3 added accelerator
1.4 added mortar and aoe class
1.5 added final boss
1.6 heavy nerf to mortar
1.7 Major Revamp
1.71 Added sniper
1.8 BOSSES UPDATE and nerfed the heck out accel and nerfed money gain cuz 2 OP
1.9 2x speed added. Play your favorite game EZ.TD, at a faster pace to complete a lengthy game during class time!