Once a player gains enough experience points (XP) to reach the next level, perform the following:
-Step 1: Gain Hit Points (HP). (You gain HP every level equal to your Endurance.)
-Step 2: Gain Skill Points (SP). (Add half your Intelligence +5, rounding up, to your skills.)
-Step 3: Gain a Perk every 2 levels. (On evens; 1st Perk at level 2.)
Experience Points (XP) required to reach the next level are as follows:
| Lvl | XP Req. | Good Karma Title | Neutral Karma Title | Bad Karma Title |
| 1 | 0 XP | Samaritan | Drifter | Grifter |
| 2 | 200 XP | Martyr | Renegade | Outlaw |
| 3 | 550 XP | Sentinel | Seeker | Opportunist |
| 4 | 1,050 XP | Defender | Wanderer | Plunderer |
| 5 | 1,700 XP | Dignitary | Citizen | Fat Cat |
| 6 | 2,500 XP | Peacekeeper | Adventurer | Marauder |
| 7 | 3,450 XP | Ranger of the Wastes | Vagabond of the Wastes | Pirate of the Wastes |
| 8 | 4,550 XP | Protector | Mercenary | Betrayer |
| 9 | 5,800 XP | Desert Avenger | Desert Scavenger | Desert Terror |
| 10 | 7,200 XP | Exemplar | Observer | Ne'er-do-well |
| 11 | 8,750 XP | Vegas Crusader | Vegas Councillor | Vegas Crimelord |
| 12 | 10,450 XP | Paladin | Keeper | Defiler |
| 13 | 12,300 XP | Mojave Legend | Mojave Myth | Mojave Boogeyman |
| 14 | 14,300 XP | Shield of Hope | Pinnacle of Survival | Sword of Despair |
| 15 | 16,450 XP | Vegas Legend | Vegas Myth | Vegas Boogeyman |
| 16 | 18,750 XP | Hero of the Wastes | Strider of the Wastes | Villain of the Wastes |
| 17 | 21,200 XP | Paragon | Beholder | Fiend |
| 18 | 23,800 XP | Wasteland Savior | Wasteland Watcher | Wasteland Destroyer |
| 19 | 26,550 XP | Saint | Super-Human | Evil Incarnate |
| 20 | 29,450 XP | Guardian of the Wastes | Renegade of the Wastes | Scourge of the Wastes |
| 21 | 32,500 XP | Restorer of Faith | Soldier of Fortune | Architect of Doom |
| 22 | 35,700 XP | Model of Selflessness | Profiteer | Bringer of Sorrow |
| 23 | 39,050 XP | Shepherd | Egocentric | Deceiver |
| 24 | 42,550 XP | Friend of the People | Loner | Consort of Discord |
| 25 | 46,200 XP | Champion of Justice | Hero for Hire | Stuff of Nightmares |
| 26 | 50,000 XP | Symbol of Order | Model of Apathy | Agent of Chaos |
| 27 | 53,950 XP | Herald of Tranquility | Person of Refinement | Instrument of Ruin |
| 28 | 58,050 XP | Last, Best Hope of Humanity | Moneygrubber | Soultaker |
| 29 | 62,300 XP | Savior of the Damned | Gray Stranger | Demon Spawn |
| 30 | 66,700 XP | Messiah | True Mortal | Devil |
| 31 | 71,250 XP | Messiah | True Mortal | Devil |
| 32 | 75,950 XP | Messiah | True Mortal | Devil |
| 33 | 80,800 XP | Messiah | True Mortal | Devil |
| 34 | 85,800 XP | Messiah | True Mortal | Devil |
| 35 | 90,950 XP | Messiah | True Mortal | Devil |
| 36 | 96,250 XP | Messiah | True Mortal | Devil |
| 37 | 101,700 XP | Messiah | True Mortal | Devil |
| 38 | 107,300 XP | Messiah | True Mortal | Devil |
| 39 | 113,050 XP | Messiah | True Mortal | Devil |
| 40 | 118,950 XP | Messiah | True Mortal | Devil |
| 41 | 125,000 XP | Messiah | True Mortal | Devil |
| 42 | 131,200 XP | Messiah | True Mortal | Devil |
| 43 | 137,550 XP | Messiah | True Mortal | Devil |
| 44 | 144,050 XP | Messiah | True Mortal | Devil |
| 45 | 150,700 XP | Messiah | True Mortal | Devil |
| 46 | 157,500 XP | Messiah | True Mortal | Devil |
| 47 | 164,450 XP | Messiah | True Mortal | Devil |
| 48 | 171,550 XP | Messiah | True Mortal | Devil |
| 49 | 178,800 XP | Messiah | True Mortal | Devil |
| 50 | 186,200 XP | Messiah | True Mortal | Devil |