The Undercity player's manual
Casino and businesses

Business

When a business is worth opening, where to open it, and how to level up and protect the Casino.

Game build 16 data from 10/17/2026 19:00 page updated 18/10/2026 22:53
The Casino does not replace crime. No way. At max level it makes $354,000 a day, before the protection cut. At level 30, with green gear only, a day of crime already makes around $1,093,138, and at level 50 with reds a single Adrenaline Shot rotation makes around $3,194,499. Whoever stops doing crime to live off the Casino makes far less. A business is for those who already farm every day and have money to spare.

Straight talk on businesses

Where to open: district tier and the protection cut

The district tier multiplies every business's income: ×1.00 at tier 1, ×1.15 at tier 2, ×1.30 at tier 3. But the multiplier applies before the protection cut, and a better district also charges more when it's held. A max-level Casino ($4,750,000 invested, $6,000 in bribes a day):

DistrictGross income/dayNeutral: you keepCut when heldHeld: you keepGoes to the gang holding it
tier 1 (13 districts)$360,000$354,000 10%–15% $300,000–$318,000$36,000–$54,000
tier 2 (9 districts)$414,000$408,000 18%–20% $325,200–$333,480$74,520–$82,800
tier 3 (4 districts)$468,000$462,000 22%–28% $330,960–$359,040$102,960–$131,040

Open, upgrade, defend: the Casino step by step

Math for a tier 3 district held by your gang (cut of 22% to 28%, which goes to the gang's till). Raid chance = raider's power ÷ (power + security). About 120 power is a mid-game raider; a well-built level 50 goes over 400. “Overnight raid” = what a raid takes from 14 hours of uncollected till.

StepCostInvestedNet income/daySecurity Raid at 120Raid at 250Raid at 400Overnight raidPays for itself in
Open the Casino (level 1)$2,400,000$2,400,000 $50,160–$54,84040 75%86%91%$17,745 44–48 days
Upgrade to level 2$50,000$2,450,000 $83,856–$91,34480 60%76%83%$28,392 27–29 days
Upgrade to level 3$200,000$2,650,000 $134,400–$146,100120 50%68%77%$44,362 18–20 days
Upgrade to level 4$600,000$3,250,000 $207,408–$225,192160 43%61%71%$67,431 14–16 days
Upgrade to level 5$1,500,000$4,750,000 $330,960–$359,040200 38%56%67%$106,470 13–14 days
+ Pit bulls$100,000$4,850,000 $330,960–$359,040300 29%45%57%$106,470 14–15 days
+ Alarm System$500,000$5,350,000 $330,960–$359,040600 17%29%40%$106,470 15–16 days
+ Armed Guards$2,500,000$7,850,000 $330,960–$359,0401400 8%15%22%$106,470 22–24 days
+ Panic Room$7,000,000$14,850,000 $330,960–$359,0402900 5%8%12%$106,470 41–45 days
+ Military Defense$15,000,000$29,850,000 $330,960–$359,0405900 5%5%6%$106,470 83–90 days
  1. Stack up $3,250,000 before opening (the opening + the first 3 upgrades) and do it all on the same day. Opened at level 1, the Casino brings in $54,840 a day, takes 44+ days to pay for itself and a strong raider robs it 91% of the time. At level 4 the payback drops to 14–16 days.
  2. Level 4 is still easy pickings: 43% against a mid-game raider, 71% against a level 50. Bump it to 5 ($1,500,000) as soon as you can.
  3. Pit bulls and the Alarm System right after. For $600,000 the strong raider's raid chance drops from 67% to 40%, and the payback barely moves.
  4. Armed Guards only if they're raiding you nonstop (22% against a strong raider, payback goes to 22–24 days). The Panic Room and Military Defense don't pay for themselves with the income: they only make sense for someone who really has nowhere else to spend.
  5. Collect before bed and as soon as you wake up. A raid takes 50% of the pending till; overnight is when the till is full and you're not watching.
For those who've already decided to open: rules, buying order and portfolios

Purchases in order of return

BusinessPurchaseCostGain per dayPays for itself in
Casinoupgrade to level 2$50,000$36,0001.4 days
Nightclubupgrade to level 2$50,000$15,0003.3 days
Casinoupgrade to level 3$200,000$54,0003.7 days
Gun Storeupgrade to level 2$50,000$7,2006.9 days
Casinoupgrade to level 4$600,000$78,0007.7 days
Nightclubupgrade to level 3$200,000$22,5008.9 days
Casinoupgrade to level 5$1,500,000$132,00011.4 days
Chop Shopupgrade to level 2$50,000$3,60013.9 days
Nightclubupgrade to level 4$600,000$32,50018.5 days
Gun Storeupgrade to level 3$200,000$10,80018.5 days
Nightclubupgrade to level 5$1,500,000$55,00027.3 days
Pawn Shopupgrade to level 2$50,000$1,80027.8 days

Math for a neutral tier 1 district (no multiplier and no cut). For each district's tier and cut, see the Where to open table. Opening already accounts for the bribe; leveling up doesn't change the bribe.

The best portfolio for each budget

Exhaustive search across every combination of up to 5 businesses (type and level of each), opening the priciest first:

BudgetBest comboCostNet income/dayPays for itself in
$100,000Laundromat lv 1 + Laundromat lv 1 + Laundromat lv 1 + Laundromat lv 1 $81,500$90090.6 days
$500,000Chop Shop lv 3 $490,000$14,40034.0 days
$1,000,000Gun Store lv 3 + Pawn Shop lv 2 + Laundromat lv 1 $982,500$33,52529.3 days
$3,000,000Casino lv 3 + Pawn Shop lv 2 + Laundromat lv 1 + Laundromat lv 1 + Laundromat lv 1 $2,986,500$149,17520.0 days
$5,000,000Casino lv 5 + Pawn Shop lv 2 $4,980,000$358,50013.9 days
$10,000,000Casino lv 4 + Casino lv 5 + Chop Shop lv 3 $9,990,000$590,40016.9 days
$25,000,000Casino lv 5 + Casino lv 5 + Casino lv 5 + Nightclub lv 5 + Pawn Shop lv 2 $24,850,000$1,214,00020.5 days
$50,000,000Casino lv 5 + Casino lv 5 + Casino lv 5 + Casino lv 5 + Casino lv 5 $43,310,000$1,770,00024.5 days

Raids and Detective Barone

Chance of a raid succeeding = raider's power ÷ (power + security). Security = shop level × 40 + defenses. A typical mid-game raider has about 120 power.

ShopSecurityraider 80raider 120raider 200raider 400
level 14067%75%83%91%
level 28050%60%71%83%
level 312040%50%62%77%
level 416033%43%56%71%
level 520029%38%50%67%
level 5 + up to Pit bulls ($100,000)30021%29%40%57%
level 5 + up to Alarm System ($500,000)60012%17%25%40%
level 5 + up to Armed Guards ($2,500,000)14005%8%12%22%
level 5 + up to Panic Room ($7,000,000)29005%5%6%12%
level 5 + up to Military Defense ($15,000,000)59005%5%5%6%

A successful raid takes 50% of the uncollected till (up to $500,000). Barone takes a piece of a collection's envelope (he opens asking for 50%, you can haggle him down to 20%), at most once every 20 h. Collecting often cuts down what both of them can take.