First off, we need to access our save file. It is located in:

C:\Program Files (x86)\Steam\userdata\*yournumber*\322920\remote\tHPsave.sav

We should open this with WordPad to preserve any formatting.

Now we have found it, we should take a few minutes to understand what we are looking at.

Here is my save file, for example.

{"avatar":1000002,"bans":null,"collectable":{"rock":null},"d_v":2,"health":3500.0,"inventory":[{"guid":"8164","health":-2,"item_id":1005,"slot":4},{"guid":"8165","health":-2,"item_id":1006,"slot":2},{"guid":"8166","health":993,"item_id":1007,"slot":8},{"guid":"8167","health":-2,"item_id":1004,"slot":5},{"guid":"8168","health":-2,"item_id":61,"slot":20},{"guid":"8169","health":2,"item_id":69,"slot":9},{"guid":"8170","health":-2,"item_id":9,"slot":3},{"guid":"8171","health":-2,"item_id":130,"slot":1},{"guid":"8172","health":2,"item_id":1000,"slot":1},{"guid":"8173","health":-2,"item_id":112,"slot":1}],"kills":{"t_rex":null},"persistent":null,"position":{"x":2570.967285156250,"y":443.0897216796875,"yaw":0.3236102163791657,"z":-1228.016113281250},"seen_intro":true,"tokens":6960734,"unlocked_items":[1017,1008,1010,1019,1016,1009,1018],"world":{"severity":1.0,"time_of_day":20.40015029907227,"weather_time":78542.2031250},"world_map":"eF5jYBgFhIAClE6A0g5ofAMoLYCDNoLSClA6AUoPBgAAkocCMw==","xp":1252061.3750}

Wall of text much? Let's break it down.

A lot of the options we don't need to know about, although you can play with them. A few keys one are

"tokens":6960734 - this is the amount of money you will have
"xp":1252061.3750 - higher value determines what level you will be. 0 will be Lvl1, 1,252,000 is at least Lvl50.

The most important parts of the file are these lines

{"guid":"8121","health":65,"item_id":112,"slot":8}

The above example is placing a 65x .700 ammo in your first gun ammo slot.

guid and item_id are both determining the item
health is determining the amount of the item
slot is determining where it is placed in the inventory

We can use these to build our own custom inventory. We can add as many of these as we like, as long as we keep the formatting correct. In most cases, you can simply edit the values of what you already have in the file.

===== Item Slots =====

1st gun slot:2
1st gun ammo slot:8
1st gun scope slot:5
2nd gun slot:3
2nd gun ammo slot:9
2nd gun scope slot:6
3rd gun slot:4
3rd gun ammo slot:10
3rd gun scope slot:7
Item #1 slot:11
Item #2 slot:21
Bottom area slot:1
Shirt slot:18
Pants slot:19
Gloves slot:22
Boots slot:20

===== Weapons =====

Crossbow guid:8152 item_id:1016 default health -2
Assault Rifle guid:8151 item_id:1009 default health -2
Compound Bow guid:8126 item_id:85 default health -2
AP Rifle guid:8130 item_id:348 default health -2
Shotgun guid:8111 item_id:9 default health -2
.308 Pistol guid:8113 item_id:215 default health -2
.308 Marksman guid:8112 item_id:129 default health -2
.44 Pistol guid:8116 item_id:345 default health -2
.700 Rifle guid:8121 item_id:112 default health -2
.50 Sniper guid:8118 item_id:1006 default health -2
Machete guid:8119 item_id:1005 default health -2
Tactical Axe guid:8138 item_id:1008 default health -2

===== Ammo =====

Crossbow bolts guid:8155 item_id:1019
Assault Rifle guid:8154 item_id:1010
Slug ammo guid:8125 item_id:113
Buckshot ammo guid:8142 item_id:69
Compound ammo guid:8143 item_id:86
.308 ammo guid:8144 item_id:131
.44 ammo guid:8145 item_id:13
.700 ammo guid:8238 item_id:1000

===== Scopes ======

.308 scope guid:8146 item_id:130 default health:-2
.44 scope guid:8115 item_id:4 default health:-2
.50 scope guid:8230 item_id:1004 default health:-2

===== Items =====

Low Health guid:8160 item_id:1001
Medium Health guid:8159 item_id:1002
High Health guid:8132 item_id:90
Merc Binocs guid:8124 item_id:173 default health -2
Trike Caller guid:8122 item_id:150 default health -2
Scent Gland guid:8127 item_id:1018 default health -2
Spawn Beacon guid:8137 item_id:1017 default health -2

===== Clothing =====

Merc Pants guid:8114 item_id:40 default health -2
Noble Shirt guid:8123 item_id:33 default health -2
Noble Gloves guid:8120 item_id:87 default health -2
Noble Boots guid:8117 item_id:61 default health -2