Dirty Business Upgrade Base Guide — July 2026 | Dirty Business Wiki

Your starting bunker is a tutorial shell. Dirty Business expects you to carve new rooms, upgrade utilities, and specialize zones until the base matches your criminal portfolio—weed, weapons, counterfeiting, LSD, or all of the above. This guide prioritizes Early Access upgrades, explains how expansion interacts with production and heat, and helps solo players and co-op squads spend cash where it removes bottlenecks instead of where it looks cool.

Upgrade Philosophy

Spend on throughput and risk reduction before cosmetics. A pretty lounge does not shorten drying time; extra racks do. Ask before every purchase:

1. Does this unlock a new product or order tier?
2. Does this remove the current bottleneck?
3. Does this reduce heat or evidence risk via evidence disposal capacity?
4. Does this enable hire workers slots or power for machines?

If four nos, defer. Early cash is tight after beginner guide onboarding.

Core Infrastructure

Power — Every lamp, lathe, and incinerator draws load. Brownouts stall grow weed cycles and weapon timers. Upgrade generators or trunk lines before duplicating machine rooms.

Storage — Raw materials and packaged goods need shelves, tubs, and locked rooms. Overflow forces floor drops that become evidence. Place storage near production inputs and outbound staging for complete orders.

Ventilation and utilities — Some lines may require HVAC for quality tiers. Read upgrade tooltips when expanding into chemical production.

Details on room-specific needs appear in product guides and the base hub as the wiki expands.

Room Expansion and Layout

Unlock adjacent tiles or prefab modules from the build menu. Plan traffic flow:

• Production wings radiate from storage
• Disposal sits on exit paths
• HR and bunk modules stay central for worker path efficiency
• Delivery garage near surface exit

Rebuild once for free in Early Access if the game offers deconstruct refunds—verify patch notes on updates. Otherwise measure twice.

Co-op groups should vote on layout changes mid-session only during quiet periods—moving a wall through an active grow room kills timers.

Production Room Upgrades

Grow rooms: Lights, pots, racks—see grow weed guide.

Machine shops: Lathes, presses, inspection tables—see manufacture weapons.

Print shops and labs: Counterfeit and LSD chains need distinct modules from production.

Upgrade machines before adding duplicate rooms. One fast bench beats two slow ones with one operator.

Security and Risk Mitigation

Security cameras, reinforced doors, and silent alarms may reduce raid impact or delay detection depending on mechanics. Pair security with disposal—cameras do not delete trash.

If raids destroy unsecured stock, prioritize locked storage for finished order goods before accepting high-tier contracts.

HR and Quality of Life

Bunk rooms and HR terminals increase worker caps. Hire only after slots exist and wages fit budget per hire workers.

Quality-of-life upgrades—lighting that is not functional, signage, recreational areas—come after income stabilizes from repeatable orders.

Suggested Upgrade Order (Early Access)

General path for new saves:

1. Power upgrade after first grow room fills
2. Drying and packaging for weed income
3. Disposal throughput
4. Storage expansion
5. First weapon or counterfeit module unlock
6. Worker bunks
7. Second production wing
8. Security and locked storage

Adjust if your first orders push weapons before weed—flexible but risky.

Funding Upgrades

Order payouts fund construction. Chain small reliable jobs while saving lump sums for big unlocks. Avoid zero bank balance before payroll if workers are hired.

Demo players transferring to full game should expect faster early progression—do not copy demo pacing blindly. Read review for economy commentary.

Integration with Other Systems

Upgrades touch every guide in this wiki:

• More machines → more evidence disposal
• More workers → more upgrade base HR modules
• More rooms → clearer co-op role boundaries
• New lines → revisit controls for new interaction prompts

Use walkthrough mission gates if campaign blocks certain rooms until story beats complete.

Common Upgrade Mistakes

• Duplicating grow pots without drying upgrades
• Weapon shop before power upgrade
• Zero disposal investment during counterfeit ramp
• Cosmetic spending before second storage room
• Expanding without revisiting worker zone assignments

Future Patches

Early Access means rebalance. A tier-one generator cost today may differ next month. Bookmark updates and community tools for cost spreadsheets.

For interaction bugs after placing blueprints, check controls troubleshooting.

A well-upgraded base feels invisible—it just runs. Spend smart, expand once per bottleneck, and your facility outgrows rivals still crouching in the starter room.