Welcome to the ultimate Seed of the Dead: Sweet Home walkthrough. This guide covers everything you need to master the game, including waifu intimacy, gifts, mini-games, facilities, unlockable costumes, NTR quest items, achievements, and strategies for each stage and boss.
Table of Contents
Updated with detailed tips, this guide is designed for both newcomers and veterans aiming for 100% completion.
Seed of the Dead Sweet Home Walkthrough
Seed of the Dead: Sweet Home is a waifu-focused action game with survival horror elements. Players manage multiple facilities, engage in combat with zombies, and build relationships with four main heroines: Hikari, Aya, Kirara, and Ichika. Progression is tied to both combat performance and intimacy levels, unlocking mini-games, costumes, and special illustrations.
Intimacy Levels
Each waifu has unique intimacy levels (0–10). Raising intimacy unlocks special R18 events, bonus artwork, and 3P scenes.
Ichika (Hazuki Ichika – CV: Kumiko Okugawa)
- Favorite Gifts: VR Headset, Game Console, Huge Black Cat Plushie, Gaming Headset
- Max Intimacy (10) Unlock: Special “Bonus” illustration
- 3P Scene: Requires Ichika Lv9 + Hikari Lv9 + Hot Spring unlocked
- Notable Events: “Chasing Each Other” → “Nice Bath” (R18)
Hikari (Kondo Hikari – CV: Thought)
- Favorite Gifts: Dumbbell, Strawberry Sundae, Protein, Monthly Runner’s Magazine
- Max Intimacy (10) Unlock: Special “Bonus” illustration
- 3P Scene: Requires Hikari Lv9 + Ichika Lv9 + Hot Spring unlocked
- Notable Events: “The Leader’s Work” → “Nice Bath” (R18)
Kirara (Suzune Kirara – CV: Raim Midorino)
- Favorite Gifts: Fireworks, Travel Guide, Tea, Diary
- Max Intimacy (10) Unlock: Special “Bonus” illustration
- 3P Scene: Requires Kirara Lv9 + Aya Lv9 + Virus Research Lab unlocked
- Notable Events: “Rotten Rabbit Girl” → “Science Experiment” (R18)
Aya (Aya Kagano – CV: Sawano Popura)
- Favorite Gifts: Treatment Cream, Nice Looking Bag, Coffee, Perfume
- Max Intimacy (10) Unlock: Special “Bonus” illustration
- 3P Scene: Requires Kirara Lv9 + Aya Lv9 + Virus Research Lab unlocked
- Notable Events: “Good Night” → “Science Experiment” (R18)
Tips to raise intimacy:
- Gift preferred items to trigger mini-games and intimacy boosts.
- Participate in intimacy events to progress storylines and unlock special CGs.
- Achieving Max intimacy opens 3P routes and special bonus illustrations.
Facilities & Mini-Games
Facilities are upgraded through the Material Shop and unlock R18 mini-games, rewards, and permanent items.
| Level | Facility | Cost | Mini-Game | Trigger | Rewards |
|---|---|---|---|---|---|
| 1 | Toilet (Diuretic) | ₱10,000 | DokiDoki! Peep | Gift Diuretic (+30) | Random Items, Diuretic, First Person View |
| 2 | Armory | – | – | – | Unlock new weapons/upgrades |
| 3 | Room Refurbishment | – | – | – | Customizes room appearance |
| 4 | Shower Room (Shampoo) | ₱30,000 | Poi Poi!! Shower Bukkake | Gift Shampoo (+100) | Random Items, Shampoo, Inner Voice |
| 5 | Virus Research Lab | – | – | – | Required for Kirara & Aya 3P route |
| 6 | Hot Spring (Hot Spring Set) | ₱60,000 | PyeongPyeong!! Hot Spring Jump | Gift Hot Spring Set (+150) | Random Items, Hot Spring Set, Cross-Sectional View |
Mini-Game Controls:
- Peep: Hold Left Mouse Button, release on WARNING!
- Shower: E/Q = Up/Down, A/D = Left/Right, W/S = Zoom, Mouse 1 = Spray
- Hot Spring: A/D = Strafe, Space = Jump & Free Fall
Permanent Items & Unlockables
- Body Change – Skin/Shape (All Waifus): ₱200,000, 400 pts
- Legcuffs: Ichika 400 pts / Others 200 pts
- Nipple Piercings / Rotor: ₱40,000
- Mini-Game Unlockables: First Person View, Inner Voice, Cross-Sectional View
These items enhance visual effects, costume options, and bonus content.
Achievements
Key achievements include:
- Xanadu: Clear Act 1
- Nightmare: Clear Act 5
- Family: Clear Act 8
- Facility Expansionist: Upgrade a facility
- Lovey-Dovey with [Waifu]: Max intimacy (10)
- Greatest Sponsor: Upgrade facility to Level 6
- Go Beyond My Score: Earn 567,859 points in a battle
Combat Tips:
- Equip “Extra Point 3” and use Molotov Cocktail on large zombie hordes.
- Acts 7 & 8 are optimal for farming points and bullets.
NTR Quest Item Locations
Items must be activated by talking to NPCs first.
| Waifu | Item | Act | Location |
|---|---|---|---|
| Hikari | Smartphone | 1 | City Centre |
| Hikari | Small Bottle | 4 | Academy |
| Hikari | Contract | 6 | Town |
| Hikari | Camera Memory Card | 9 | Mountain Road |
| Hikari | Mysterious Medicine | 12 | Sky Tower |
| Aya | Red Powder | 3 | Train |
| Aya | Blue Powder | 5 | Abandoned Factory |
| Aya | Collar | 2 | Supermarket |
| Aya | Compact Camera | 11 | Military Base |
| Aya | Handcuffs | 10 | Oedo Park |
| Kirara | Frozen Diced Fruit | 2 | Supermarket |
| Kirara | Gold Nugget | 7 | Suburbs |
| Kirara | Rope | 5 | Abandoned Factory |
| Kirara | Flower Blooming | 9 | Mountain Road |
| Kirara | Tiara | 12 | Sky Tower |
| Ichika | Fighting Game Guide | 3 | Train |
| Ichika | Laptop | 8 | Laboratory |
| Ichika | Controller | 7 | Suburbs |
| Ichika | Special Metal | 11 | Military Base |
| Ichika | Legendary Game | 12 | Sky Tower |
Unlockable Costumes
- Chinese Dress (Act 10 – Oedo Park): Kill all zombies on rides.
- Venus Costume (Act 13 – Super Arena): Destroy Golden Glow Eggs during final boss fight.
- Lingerie (Act 7 – Suburbs): Drone drops gift box when 47–51 enemies remain.
- Laboratory Costumes (Act 8): Reverse Bunny, Combat Armor, Bikini Armor – unlocked via switches and platforming.
Farming Tip: Multiple costumes can be farmed per battle; focus on enemy waves and Golden Eggs.
Stage & Boss Strategy
Final Boss (Act 13 – Echo)
- Three phases; player solo until Phase 3.
- Weak Points: Glowing buttocks & chest.
- Collect Vitality and Grenades from killed spiders.
- Use “Recovery Action” (hold E) for guided missile attacks.
- Spectator Gauge decreases on boss roar; counter quickly.
General Tips:
- Focus on mini-games for permanent unlockables.
- Equip waifus with skills for battle efficiency.
- Prioritize facility upgrades for content access.
Seasonal Events
- Halloween: 5-wave stage → earn pumpkins → trade for Jack-o’-Lantern Hat, Devil’s Wings.
- Christmas: 5-wave stage → earn gingerbread men → trade for Christmas costumes, accessories, and new intimacy events.
Tips & Tricks
- Gift items to trigger mini-games and intimacy events.
- Max intimacy unlocks 3P routes and bonus illustrations.
- Efficient combat in Acts 7–8 yields high points and unlockable items.
- Seasonal events provide unique costumes and accessories.
- Focus on mini-game mastery to unlock top-tier content and rewards.
