Get v0.81 here, and make sure you have the latest dev build of G/QZDoom!
Feature rundown:
- An experience system that rewards killing and exploration.
- A linear perk system for rewarding experience gained.
- A hybrid health and stamina regeneration system.
- Left 4 Dead style healing.
- Projectile bullet (tracer) weapons.
- Reloading, recoil effects, and sprinting.
- Hotkey grenades and melee attacks.
- A new game plus feature that makes the game numerically harder.
- Bind keys to do various mod specific things. Everything you need to bind will be shown in the customize controls menu.
- Press altfire to aim the scoped weapons (assault rifle and grenade launcher).
- Hold down altfire while using the firebomb launcher to launch a supercharged firebomb. This requires ammo found on chainsaw spawns, however.
- Hold down the melee key while sprinting to build up momentum for a power attack. If you stop sprinting or run of stamina, you lose your momentum.
- Taking damage and sprinting will gradually reduce the amount of health and stamina you can regenerate. Use the care package (explained below) to remedy this.
- Recoil is increased while sprinting or being airborne. Crouching does the opposite.
- Your starting pistol is silenced, so you can take down enemies stealthily and avoid causing sound triggered ambushes. Firing it indoors near an enemy or if the bullet hits near an enemy, it will be alerted anyway.
- The care package on slot 1 holds your health packs and field rations.
- Health packs restore vitality (max health). Use by holding down fire.
- Field rations restore 25% vigor (max stamina). Use by holding down altfire.
- Combat stims (activated with a hotkey) heal you instantly, give near infinite stamina, and lets you jump higher for a few seconds.
- Helper scientists will spawn where the automap, blursphere, and infrared goggles used to be. They're armed, but fragile. They also drop health and ammo (depends on what they're carrying) if you're running low.
- You gain experience by killing enemies, finding items (treasures and spheres), and discovering secret areas on the map.
- Beating the game will let you do a new game plus, which lets you restart the wad with your equipment and perks and makes the game numerically harder. You can also start the game with this extra difficulty at any time by typing in "secondquest" in the console (though this will make you lose your stuff).
Spoiler: Experience and perk info