THIS MOD IS POWERED BY THE GLORIOUS ConsoleCommand() FUNCTION!
As you might know, Survival is a game mode that adds challenge to the otherwise... non-challenging cooperative game mode. It comes with a price, however. All players must wait until the map is over, or all players die, to join.
This mod aims to be a mid point between both game modes. "Not Survival" will allow players to join freely for the first seconds of gameplay, then close all player slots, forcing any player that dies to spectate. Every time a certain amount of monster kills is achieved (50 by default) or some minutes have passed (disabled by default), one spectator will be allowed to join the game.
Since this mod manipulates sv_maxplayers to work, use notsurv_maxplayers to set a player limit.
Note: this mod supports multiple lives using the notsurv_lives CVAR. But since coop doesn't display lives, you can customize a key to show how many you have (or type "notsurv_printlives" on console).
Spoiler: CVARINFO (Open)
Spoiler: Screenshot (Open)
Spoiler: Credits (Open)