Blasc Survival Overhaul

Beware, installing this Mod will make irreversible changes to your world.

Long-form Description

This is an insanely customizable Survival Overhaul Mod that aims to make Minecraft a harder and more punishing survival game without making it too realistic or straight up miserable. It touches Animal Behaviour, Crop Farming, Early Game, Forging, adds new effects such as Adrenaline or Bleeding, and makes smaller changes like a black screen on death, desaturated visuals at low health, or small hunger drain when walking.
Now what do I mean with "insanely customizable"? I mean you can literally turn off every single feature separately, or customize them to death in the config.

Features

• Overhauled Animal Behavior: All mobs will now deactivate their vanilla behavior once a player is in a 15 block radius. Chickens and rabbits will always try to flee. Sheep have a 50/50 chance to flee or stay neutral. Pigs, cows, horses, and donkeys have a 50/50 chance of fleeing or becoming hostile. Once hostile, they follow the player and will attack. If you fight back and get them below half their max health, they give up and flee.

• Bleeding: Bleeding is a new effect. It acts like Poison, but can actually kill you and deals damage faster the higher the effect amplifier is. The higher your armor points are, the less likely you are to bleed, with 20 armor points making you unable to bleed. Entities that are punched with no weapon or take high fall damage can get Bleeding I. Entities hit with an arrow or spear can get Bleeding I or II. For axe and sword damage, bleeding depends on the tier. A diamond sword deals Bleeding II or Bleeding III, for example. The bleeding level can be reduced or stopped by using a Bandage.

• Forging: This is an extraordinarily big one. When you craft tools and armor above wood/leather tier, they start with 50% durability and can’t be enchanted or repaired. If you want to do these things, you need to heat the item 1 block above a magma block, lava, or lava in a cauldron (put a trapdoor or slab above lava) for 10 seconds. This process temporarily removes 40% of the max durability. This means that if you already used 10% of the max durability of the unforged item, it will break during heating. Once heated, don’t let it cool down or drop it in water. The heat timer is 90s by default. If the item cools down while unforged, it only regains a little durability and still stays unforged.
  To forge it, first craft a forging hammer. Then drop the item on top of an anvil and hit the anvil continuously with the forging hammer. After 10 seconds, the item is forged but still heated. Let it cool down by itself or throw it into water (or a water cauldron). After cooling down, the item regains all durability minus the durability you already used.

• Early Game: This isn’t only about the early game, but some changes make the game harder in general. Every block mined with the wrong tool or no tool takes 5x longer to break and drops nothing. Mining blocks with the correct tool still takes 2x longer but drops items.
  Leaves and gravel are the only breakable blocks that drop something without a tool. Vines are added to the leaves loot table and are as rare as apples. Gravel mined without the correct tool drops flint 10% of the time and nothing 90% of the time.
  Hitting stone continuously with flint will eventually turn it into sharpened flint. With this, you can craft a flint hatchet using vines, 2 sticks, and a sharpened flint. With that, you can mine wood and vanilla progression continues from there.
  You can also craft a spear. First, craft a long stick using 2 sticks. Then hold the long stick in your main hand and the sharpened flint in your off-hand. Hold right-click for 5 seconds and it will turn into a spear. The spear deals more damage than arrows but can only be thrown once and cannot be picked up. You can also use it as a melee weapon, but it will break quickly. The spear is a good weapon against fleeing animals.

• Crop Overhaul: You can hardly call it an overhaul, but it still changes some things. All crops grow 2x slower than vanilla by default. A new mechanic is added that requires taking care of your crops: crop sickness. Every crop has a base chance of randomly getting sick. When that happens, the crop no longer drops anything. This isn’t bad by itself because it’s rare, but it can spread. Every adjacent crop of the same type has a 5x base chance of getting sick as well. Other crop types have a 2x base chance.

• Adrenaline: The last “big” feature. This is a buff to your survival, and you are going to need it. If your health drops below 10 HP (5 hearts), the game checks for nearby threats. If their total health is higher than yours (including armor), adrenaline triggers.
  There are two types of adrenaline: fight mode and flight mode. If the threats’ total health is 1–3x higher than yours, you get fight mode, which gives Strength I for 1 minute. If it is 3x or higher, you get flight mode, which gives Speed I for 1 minute. After the timer ends, the game quickly checks again if additional adrenaline is needed. If not, you get after-effects: slowness and weakness for some time. If adrenaline is still needed, you enter an adrenaline streak, reapplying the effects at a higher cost. After-effect levels are calculated as Adrenaline Streak × After-Effect Level. For example, an adrenaline streak of 3 results in Slowness III and Weakness III.

• Black Screen: You get a sudden black screen on death instead of the death screen, which fades after a few seconds into the vanilla one. You also get a black screen on world join or respawn that fades away.

• Health VFX: The lower your health, the less saturated your screen becomes, reaching 20% saturation at 0 HP.

• Hunger Drain: Your hunger slowly drains while walking and even slower while idling. Just don’t AFK in your world for hours and you’ll be fine.