The Level Cap is a feature in The Last Stand: Union City and The Last Stand: Dead Zone.
The Last Stand: Union City[]
The cap is Level 30, with a XP limit of 90,000 XP. Zombies stop giving experience after their threat level is 5 levels below the character level, and the highest danger level in the game is 25 (at Union Island). This means that 30 is the highest character level.
The Last Stand: Dead Zone[]
The cap is currently Level 60 on all sites (Armor Games, Facebook and Kongregate). It may be increased in the future.
The XP requirement to level up is 350 x Current Level² (e.g. 350 to reach Level 2 from Level 1; 1,400 to reach Level 3 from Level 2; 840,350 to reach Level 50 from Level 49). The total XP required to reach Level 50 from Level 1 is 14,148,750.