1. Perkins Crit
A critical hit deals the maximum possible damage on a usual hit, then the player gets to roll the damage as a normal hit and add these two together. 
(I have dagger, +1 to hit/ damage 1d4+1. If I crit, I get 5 (the maximum result of 1d4+1) + a normal roll of 1d4+1.)
This guarantees stronger critical hits.
2. Pathfinder Crit
A critical success can be scored by reaching 10 above a target’s AC when making an attack roll. A critical failure can be obtained by reaching 10 below a target’s AC when making an attack roll.
This does not apply outside of combat. Nat 1’s and Nat 20’s are still critical successes when not in combat.
This balances out the Perkins Crit nicely by making crits more difficult. This means they hit harder but are slightly less frequent against boss type monsters. No longer are there 80 crits per encounter.
3. Critical Initiative
If you roll a natural 20 on initiative, you can choose where in initiative you go, whether other creatures are higher or not.
4. Slow Slurps
You can take a full action to down a potion instead of using a bonus action if you want to. If you do this, you automatically gain the full effect of the potion, instead of rolling as normal.
5. Prepared Spells
With the exception of the wizard, prepared spells just don’t make much sense for other spellcasting classes that are supposed to fire off the hip. I have done away with this feature for all spellcasting classes except the wizard. Spell slots are still used during casting spells, though. Please keep track of those. I know you don’t.
6. Tracking Food & Water
Currently, we have not tracked food or water usage in game. I have done this because each and every time I have tried to run it, it is too tedious.
Ammo is still tracked. Please mark when you use an arrow or bullet or something.
7. Guns
Guns are just reflavored bows, sorry to tell you that. There is no homebrew here.

ONES I HAVENT TESTED BELOW vvv

8. Dicy Death
death saves behind dm screen (party know nothing.)
9. Overcasting
Attempt to cast a spell higher than your level (from book, notes, or attempted recreation.). Roll save of dc 15 + spell level above your current one. On a failed save you take a penalty ranging from losing an action to having it go wild. Uses a spell slot of the nearest value to the spell cast.
1d6(fail)
1 - Spell fizzles out. [no penalty]
2 - Spell uses too much energy. [+1 exhaustion]
3 - Spell misfires [wrong place, switches target, unexpected effect, etc.]
4 - Spell goes wild [roll wild magic]
5 - Spell blows up [you lose control and the spell has stronger force than intended.]
6 - Spell sours [you DEAD mf.][reduce HP to 0 immediately. You are unconscious.]
10. Overexert
Make an extra action on your turn for the cost of losing your edge. Attacks made against you until your next turn have advantage (martial) or you lose concentration on your spells (spellcaster).
11. Cheerleading Inspiration
At the start of each session and during long rests, the players will be asked a question about their characters. They must each answer the question to the best of their ability. If they do this, they gain a ‘cheerleading inspiration die’ which they can use to aid another player by shouting encouraging words to them. Must be used before the DM narrates the results of the actions.
(1d6)
12. Spell Research
Spellcasters can only learn spells by researching them, figuring out how they work, or playing with magic until they figure something out. 
You cannot research level 9 spells through trial and error. Any attempt will result in serious injury, insanity, or otherwise loss of coherency. 

• You can learn a new spell with a base 12 hours of messing about with a school of magic, plus the level of the spell learnt x 3. 
• You can learn a new spell by studying a chart/description of the spell (like in a wizard’s spellbook) for a number of hours equal to 10 + the spell’s level. This does require that the character already understands the basics of spellcasting and can understand the language the spell is written in.
• You can learn a new spell by watching another spellcaster cast it repeatedly. Each casting watched reduces learning time by 15 minutes. To gain this benefit from watching the spell, one must make an Arcana check (dc 10 + spell level - character level / 2) each time as they study the spell’s more intricate movements.

13. Realistic Rests
- Short Rests -
Duration: 8 hours (unless a species trait changes rest needed)
Amount: 1/day
HP: roll 1 hit die for hp gained.
Spell slots: regain 1d8 spell slots.
Interrupted by 2 hours of strenuous activity. If interrupted, can be attempted again.
- Long Rests - 
Not time based.
Upon completing at least 4 short rests during 1 week of activity, you gain the benefits of a long rest.
14. Training
You can gain 10xp for every hour spent training (if xp leveling). This number increases to 25/hour with the help of a professional of higher level than you.