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LIVEEarly Access since Oct 9, 2026Game v0.1.50.17746Steam reviews Very Positive · 91% (209)Facts checked Oct 11, 2026Patch notes →
SHOP UPGRADES · SITE MODEL

Japanese Ramen Simulator Shop Upgrades & ROI Guide

Early Access v0.1.50.17746 equipment priorities plus a custom ROI calculator. Prices and payback days are site-model estimates—not in-game verified stats.

Unofficial fan wiki — not affiliated with Wild Dog or Steam. Prefer /changelog and in-game UI for latest facts.

For cash pacing see the money-making guide; for rush-hour station order see rush-hour kitchen flow; for official changes see the changelog.

Day 1 balance vs this table

Official patch: higher customer payments on Easy/Normal, unchanged Hard tiers, first-time boss customer cash. Our ROI table has not been re-modeled for those multipliers yet.

OFFICIAL Day 1 · v0.1.48.17626

Custom ROI calculator (your numbers)

SITE MODEL

Plug in your in-game sales, ticket size, and expected uplift to estimate payback days and a simple buy-now hint. Outcomes follow your inputs—not official game data.

Est. daily gain ($)
$8,000
Payback days (est.)
4.0
Payback business opens
4.0
Hint SITE MODEL

Reasonable if cash is available

Compare list (sorted by model payback)

Use “Add to compare” on equipment cards below

Japanese Ramen Simulator kitchen layout with broth pots, dishwasher, and noodle stations — equipment placement reference

Equipment priority (site model)

SITE MODEL

Site-model tier list ranked by estimated payback, co-op throughput, and ★3 rating gates from pre-launch previews — Early Access v0.1.48.17626 may differ. Use the custom ROI calculator with your own sales data.

Dishwasher bottleneck (illustrative model)

SITE MODEL

Site-model throughput sketch: manual ~12s/bowl vs auto batch ~5s/8 bowls; at a 48-bowl/day peak the saved seconds could free roughly +11 bowls/shift if the kitchen was stall-limited. Dollar costs in card footnotes are illustrative only.

Suggested buy order (model · $ illustrative)

SITE MODEL

Site-model buy order (illustrative $): Dishwasher (Day 2) → Beer Tap (Day 2–3) → Stockpot (Week 1) → 4-Basket Boiler (Week 1) → Defense (before first night) → Gyoza Grill + Ice Mug (Week 2) → Exhaust Hood (pre-★3) → Camera + Seating (prestige). S+A core ~$163,000; full ★3 kit ~$389,000 — not verified in-game prices.

★3 rating gates (preview-based, unverified)

SITE MODEL
  • 1.★1 → ★2: Mark II dishwasher OR 90% bowl wash rate
  • 2.★2 → ★3 Kitchen: 100L stockpot + 4-basket boiler + exhaust hood (green HUD)
  • 3.★2 → ★3 Beverage: Dual beer tap + 4°C mug chiller + 85% PERFECT 7:3 pours
  • 4.★2 → ★3 Defense: Counter trap + camera (zero theft losses × 7 days)
  • 5.★2 → ★3 Ambience: Premium seating + decor ≥ 85 + health pass (≥ 70 pts)

Equipment cards (model upkeep / downtime / power)

S (Immediate)Model payback: ~1.5 days SITE MODEL

High-Temp Rotary Dishwasher (Mark II)

The #1 bottleneck killer in co-op mode. Frees one full player from manual sink scrub and unlocks 3-star sanitation score floor.

Model cost / COST:$45,000 SITE MODEL

($ illustrative)

Efficiency (est.):Cuts bowl reset time by 75% (8 bowls washed in 5s).
Output gain (est.):+18 bowls/shift capacity (42 → 60 peak bowls/day). Frees 1 player for 100% of shift.
Daily upkeep (illustrative):$420/day descaling + $180 detergent tabs. Skip 2 days → -12% wash speed, health inspector -10 pts.
Downtime (illustrative):Motor burnout (no descale × 5 days): 1-shift repair $8,500. During downtime: -22 bowls/shift, manual wash only.
Power (illustrative):$680/shift (3.2kW × 8h peak). Off-peak auto-cycle saves 18% vs manual hot-water scrub.
★3 gate (model):★3 Shop Rating requires Mark II dishwasher OR ≥ 90% bowl wash rate tracked by HUD.
Throughput (model): SITE MODELManual wash: 12s/bowl × 8 bowls = 96s backlog/cycle. Auto: 5s for 8 bowls = 19.2s effective/bowl. Lunch rush (24 bowls/15min): manual stalls 48s/cycle; auto clears in 15s. Break-even ~35 extra bowls.
Strategy note:Buy Day 2 after basic expenses. Position between plating bench and noodle station for zero travel. Run descale mini-game at close.
CATEGORY: KITCHEN· v0.1.48.17626 · 2026-10-10
S (Immediate)Model payback: ~1.2 days SITE MODEL

Ice-Core Dual Draft Beer Dispenser

High-pressure regulated tap with nightly line-clean protocol. Uncleaned lines → sour foam next day and -1 star beverage score.

Model cost / COST:$32,000 SITE MODEL

($ illustrative)

Efficiency (est.):+340% beverage margin. Pours in 2s with auto 7:3 foam cutoff.
Output gain (est.):+12 beer tickets/shift at $680 margin = +$8,160/day gross.
Daily upkeep (illustrative):$280/day CO₂ refill + $120 line sanitizer. Nightly 90s flush mini-game mandatory.
Downtime (illustrative):Skipped line clean: next-day foam pH +0.8 → 40% 1-star beer reviews, -$4,200 avg/shift.
Power (illustrative):$520/shift (1.8kW chiller + 0.6kW compressor). Pair with ice-mug fridge for -22% chiller load.
★3 gate (model):★3 requires dual-head tap + ice-mug fridge (4°C) + ≥ 85% PERFECT 7:3 pour rate.
Payback math (model): SITE MODEL$32,000 ÷ ($680 × 12 beers/day) = 3.9 shifts ≈ 1.2 days. Ramen+Beer combo (+$420/set) pushes payback < 1 day.
Strategy note:Position at pickup counter. Pre-chill mugs 4°C — warm glass cuts foam retention 40%. Flush lines before close every night.
CATEGORY: FLOOR· v0.1.48.17626 · 2026-10-10
A (Week 1)Model payback: ~2.5 days SITE MODEL

Triple-Layer Thermal Stockpot (100L)

Eliminates mid-rush stockout panic. Required for Tonkotsu 12-hour batch and ★3 broth temperature audit.

Model cost / COST:$58,000 SITE MODEL

($ illustrative)

Efficiency (est.):Holds broth ≥ 88°C for 2 full in-game days. Triple-wall reduces heat loss 35%.
Output gain (est.):+22 bowls before refill (50L → 100L). Eliminates 2 mid-rush refill breaks (~90s each).
Daily upkeep (illustrative):$350/day gas equivalent + $80 descale powder. Water line must stay ≥ 30% volume.
Downtime (illustrative):Scorch below 30% water: $12,000 stock loss + 2-shift deep clean. Fire risk triggers if ignored.
Power (illustrative):$890/shift (induction base 4.5kW). Insulated lid saves $120/shift vs open pot.
★3 gate (model):★3 broth audit: 100L pot + exhaust hood + broth temp HUD green ≥ 88°C for 80% of shift.
Strategy note:Pre-prep two Tonkotsu batches before open. Monitor water line — scorch below 30% costs $12,000.
CATEGORY: KITCHEN· v0.1.48.17626 · 2026-10-10
A (Week 1)Model payback: ~3 days SITE MODEL

Shuriken Counter Trap & Cash Register Safe

Stops nightly cash robbery events. Integrates with security camera for 3 disguise-type thief ID.

Model cost / COST:$28,000 SITE MODEL

($ illustrative)

Efficiency (est.):100% register theft immunity. Auto-aim shuriken: headshot instant KO, torso knockback 2m.
Output gain (est.):Prevents avg $18,000/night theft. +$10,000 bounty/catch = net +$28,000/event.
Daily upkeep (illustrative):$90/day trap spring lube + $60 safe battery. Trap misfire if unmaintained × 3 days.
Downtime (illustrative):Failed defense: -40% daily cash + -20 reputation. Repeat failures spawn pro thief (sprint + smoke).
Power (illustrative):$45/shift (trap sensor + safe lock). Negligible vs theft loss.
Strategy note:Assign FOH player on bell. Listen for L-R-L footsteps 2s before register. Headshot = instant bounty.
CATEGORY: DEFENSE· v0.1.48.17626 · 2026-10-10
A (Week 1)Model payback: ~2.8 days SITE MODEL

Quad-Basket Induction Noodle Boiler

Core throughput upgrade for 4P+ co-op. Pairs with dishwasher to prevent noodle-station backlog.

Model cost / COST:$38,000 SITE MODEL

($ illustrative)

Efficiency (est.):98°C boil recovery in 4s after basket lift. ±0.5s timer precision for Barikata/Futsu.
Output gain (est.):+14 bowls/shift via 4 simultaneous timers (vs 2-basket default).
Daily upkeep (illustrative):$220/day coil descale + $95 water filter cartridge.
Downtime (illustrative):Coil failure: 1-shift repair $6,200. Fallback to 2-basket mode = -50% noodle throughput.
Power (illustrative):$1,120/shift (4×1.2kW induction). Peak lunch adds $280 vs off-peak.
★3 gate (model):★3 noodle quality audit: 4-basket boiler + ≥ 92% correct firmness timing.
Strategy note:Never drop noodles below 98°C water. Stagger 15s/30s timers across baskets 1–4.
CATEGORY: KITCHEN· v0.1.48.17626 · 2026-10-10
B (Late Game)Model payback: ~3.5 days SITE MODEL

180°C–220°C Dual-Zone Gyoza Steam-Grill

Unlocks Ramen+Beer+Gyoza triple combo (+322% margin). Fire risk if oil > 230°C unattended.

Model cost / COST:$24,000 SITE MODEL

($ illustrative)

Efficiency (est.):Dual-zone: 180°C oil sear + 220°C steam lid. 1:8 slurry lace in 25s window.
Output gain (est.):+8 gyoza orders/shift at $420 margin = +$3,360/day.
Daily upkeep (illustrative):$180/day oil filter + $65 non-stick recoating wipe.
Downtime (illustrative):Grease fire (230°C+): equipment offline 1 shift, $80,000 repair if extinguisher missed.
Power (illustrative):$640/shift (2.8kW dual element). Pre-heat 8 min before lunch saves $95.
Strategy note:180°C oil arrange → 220°C slurry steam 25s → flip on 3 crackles. Never pour water on flare.
CATEGORY: KITCHEN· v0.1.48.17626 · 2026-10-10
B (Late Game)Model payback: ~4 days SITE MODEL

Commercial Exhaust Hood & Grease Trap

Captures fryer/gyoza smoke before health inspector arrival. Grease trap clean every 3 days.

Model cost / COST:$35,000 SITE MODEL

($ illustrative)

Efficiency (est.):Reduces ambient kitchen heat -8°C. Required for ★3 health inspection pass.
Output gain (est.):Indirect: -60% grease fire spawn rate, +12% staff stamina recovery near stove.
Daily upkeep (illustrative):$310/day fan filter + $140 grease trap service (every 3 days).
Downtime (illustrative):Clogged trap: smoke HUD red → auto -25 health pts on inspection day.
Power (illustrative):$780/shift (3.6kW exhaust fan). Auto-shutoff after close saves $210/night.
★3 gate (model):★3 mandatory: exhaust hood + grease trap green HUD + zero ceiling soot tiles.
Strategy note:Clean grease trap on Day 3/6/9 cycle. Red smoke icon = inspection fail in 48h.
CATEGORY: KITCHEN· v0.1.48.17626 · 2026-10-10
B (Late Game)Model payback: ~2.2 days SITE MODEL

4°C Frost-Line Mug Chiller

Pairs with dual beer tap for ★3 beverage tier. Ice-bath hack: 90s in chiller = same effect as 5min ice water.

Model cost / COST:$18,000 SITE MODEL

($ illustrative)

Efficiency (est.):Mugs hold 4°C ±0.5°C. Critic beer score +18% vs room-temp glass.
Output gain (est.):+6 beer upsells/shift via 120s+ foam retention on critic tables.
Daily upkeep (illustrative):$95/day defrost cycle + $40 sanitizer wipe.
Downtime (illustrative):Compressor fail: warm mugs → 45s foam collapse, -$2,800/shift beer revenue.
Power (illustrative):$420/shift (1.1kW). Off-peak pre-chill overnight cuts peak draw 15%.
Strategy note:Stock 12 mugs minimum. Rotate oldest to tap station — never pour into 12°C+ glass.
CATEGORY: FLOOR· v0.1.48.17626 · 2026-10-10
C (Prestige)Model payback: ~5 days SITE MODEL

Triple-Lens Register Security Camera

Late-game defense layer. Synergizes with counter trap for pro-thief events after Day 20.

Model cost / COST:$22,000 SITE MODEL

($ illustrative)

Efficiency (est.):HUD outline on suspicious NPC 5s earlier. +15% shuriken headshot window.
Output gain (est.):Identifies 3 thief disguises pre-bell: peeping, fake order, tailing waiter.
Daily upkeep (illustrative):$70/day lens clean + $50 cloud storage (cosmetic replay).
Downtime (illustrative):Blind spot exploit: disguised thief gets +3s register reach if camera offline.
Strategy note:Watch HUD yellow outline: peeper at menu board, loiterer at entrance, tailer behind runner.
CATEGORY: DEFENSE· v0.1.48.17626 · 2026-10-10
C (Prestige)Model payback: ~6 days SITE MODEL

Premium Counter & Table Seating Expansion

Only buy after S-tier kitchen kit. Extra seats without dishwasher = backlog death spiral.

Model cost / COST:$52,000 SITE MODEL

($ illustrative)

Efficiency (est.):+8% combo order rate (Ramen+Beer+Gyoza). Ambience +12 critic patience seconds.
Output gain (est.):+4 seats → +28% peak ticket throughput when kitchen keeps pace.
Daily upkeep (illustrative):$160/day upholstery + $90 floor polish near new seats.
★3 gate (model):★3 ambience: premium seating + decor score ≥ 85 + zero broken chair events.
Strategy note:Expand only when dishwasher + 4-basket boiler online. Assign dedicated busser in 6P.
CATEGORY: DECOR· v0.1.48.17626 · 2026-10-10

Frequently asked questions

Are the upgrade prices and ROI days on this page real in-game values?

No. They are site-model estimates checked against Early Access v0.1.48.17626 — not datamined or verified per item. Use the custom ROI calculator with your own daily sales. Official cash milestones use in-game dollars (e.g. the $10,000 lifetime sales achievement on Steam).

Does the Day 1 payment buff change these ROI numbers?

Yes. The official Day 1 patch raised customer payments on Easy (+40%) and Normal (+20%); Hard/Very Hard unchanged, and first-time boss customer clears grant cash. Our static table has not been re-run with those multipliers — treat payback days as outdated until you recalc with your difficulty and sales.

Why are costs shown with $ instead of ¥?

Steam achievement text and in-game shop totals use dollar-style amounts in English/Japanese community docs. Amounts on this page are illustrative placeholders in $ — confirm prices on your build screen before spending.

Which upgrade should I buy first in co-op?

Our model ranks dishwasher and draft beer gear highest for throughput, but your bottleneck depends on crew size and menu. See /guides/dish-washing-guide for the sink → rack → washer loop, the money guide for cash pacing, and rush-hour kitchen flow for station order — then validate with the calculator.

How we label data

This is an unofficial fan wiki. Each claim carries a source label so you can tell what the developer confirmed from what we estimated.

  • OFFICIALFrom the Steam store page, official announcements or patch notes.
  • OBSERVEDSeen in gameplay footage or hands-on builds; the release build may differ.
  • PLAYER REPORTReported by players on Steam; we have not reproduced it.
  • SITE MODELA calculation or estimate built by this site — not an in-game value.

Related pages

How to make money: the whole profit loopStaff & hiring guideShop layout plannerRush-hour kitchen flowShop decor & noren editor