About Zero to Harem Hero: A Hentai Isekai Adventure
Zero to Harem Hero: A Hentai Isekai Adventure is a RPG Maker adult game from Z2HH Dev. Its most recent update, v0.2.6, came out on September 24, 2026. It runs on Windows, Mac and Android. Text is in English, and the game is uncensored. The game uses 3D-rendered art with animated scenes, and you play as a male protagonist. Players tag it with adventure, cheating, fantasy and harem, alongside ahegao, big tits and female domination content.
Game description
Step into the vibrant fantasy world Eldaria, teeming with magic, mischief, and memorable characters. Tasked with the generic Isekai plot of saving the world from the Demon Lord, explore a world full of sultry secrets, quirky companions, and questionable decisions.
Build your harem from a whole manner of different characters, from princesses, to bats, to clowns and more! Unlock new classes and companions to aid you on your lewd adventure as every encounter brings new pleasures and possibilities.
Zero to Harem Hero: A Hentai Isekai Adventure screenshots
Download Zero to Harem Hero: A Hentai Isekai Adventure v0.2.6
v0.2.6
New Ancient Dwarven Crystal:
There is now a 4th Ancient Dwarven Crystal to collect and give to Alice, available after completing the quest "Make a House a Home", which can be found inside the Magma Cave south-west of Eastport.
New Content for Alice:
Alice has a new scene as a result of the latest Ancient Dwarven Crystal. Players can also interact with the new AC Unit furniture, to trigger a mini-scene of Alice, with a 20% for repeated triggers to spawn a rare mini-scene variant.
New Crownreach Forest Fairies Side Quest:
After completing "A Fairies Gratitude", players can speak to Dahlia outside of the Verdant Core to start the new quest "Goblin Patrol". There's currently no quest reward or H-scene attached to this quest, however for now it's just a way of building up a bit more lore and back story for the Fairies in preparation for future content.
v0.2.5
New level 15 Knight and Mage Class Quests
New scenes for Freya, Nyssa and Crownreach Knight
Quest Minigame Changes (Now replayable if you revisit them after the quest)
New Areas
Bugfixed and Balance Adjustments (Check last week's post for more details)
Nyssa Scene Rework
Nyssa's masturbation scene has been fully reanimated and rewritten.
v0.2.4
New level 15 Clown Class Quest.
New scene for Harlu
Fishing Minigame remake (Now works on android devices)
New Fishing requests system
New Fishing Sidequest
Start screen UI updated
QOL changes to existing quests
v0.2.3
New scenes for Mira & Sylvie
After reaching level 20 with either Mira or Sylvie, players can visit them in their rooms to unlock new H-scenes. These scenes will then unlock a new skill for both characters.
New skill for Mira (Sacred Mirror)
Unlocked after Mira's new level 20 scene, Sacred Mirror grants a Magic deflecting buff to the entire party, causing all magic attacks to be reflected back to the attacker. Mira now unlocks the skill "Recover II" at level 17 instead of level 20.
New skill for Sylvie (Venom Volley)
Unlocked after Sylvie's new level 20 scene, Venom Volley deals damage to all enemies with a chance to apply poison to each of them. Sylvie now unlocks the skill "Rain Shot" at level 17 instead of level 20.
Map Changes (Quality of Life Update)
Nearly every single area/map in the game should now have a name tag that appears in the top corner of the screen when entering.
v0.2.2
New Affection System for Nola
After asking Nola about rare materials, you'll unlock the new affection system for Nola. This includes a brand new scene, 3 costume scene variants, her own intimacy quest and more.
New Affection System for Efelhi
Also getting her own affection system update this patch, is Efelhi. This is unlocked after either watching or skipping her current scene and also includes a brand new scene, 3 costume scene variants and her own intimacy quest.
New Affection System Costumes
With this expansion of the affection system, comes new costumes which can be collected to unlock more costume variant scenes. Both Mary and Lyra each have a new costume variant for their preexisting affection system scenes, whilst both Efelhi and Nola will be debuting with 3 costume variants each.
New Building in Crownreach
The restaurant in Crownreach has been replaced with the new Crownleaf Teahouse, where players can go and buy tea leaves and cups of tea. This is to support the new affection system changes, with certain gifts being available here.
3D Face image update
Efelhi and Nola will be receiving 3D face images this patch too. Being shipped alongside their new affection system content, the two of them will now have their own updated 3D face images for textboxes.
Small Efelhi Visual Update
And finally, Efelhi has received some small visual changes to both her model proportions and eye textures/colours.
Harlu Scene Rework
Finally, it's here. Harlu receives a complete scene rework of her introductory titjob scene, featuring brand new, higher quality animations and writing.
v0.2.1
New scenes for Ellie & Morgana:
After reaching level 20 with either Ellie or Morgana, players can visit them in their rooms to unlock new H-scenes. These scenes will then unlock a new skill for both characters.
New skill for Ellie: Edict of Valor:
Unlocked after Ellie's new level 20 scene, Edict of Valor increases Attack, Defense, Magic Attack, Magic Defense and Agility for all party members temporarily. Ellie now unlocks the skill "Spin Crash" at level 17 instead of level 20.
New skill for Morgana: Witchfire:
Unlocked after Morgana's new level 20 scene, Witchfire deals fire damage to one target and has a 2/3 chance to apply burn, which deals damage per turn and reduces the targets attack. Morgana now unlocks the skill "Crippling Hex" at level 17 instead of level 20.
v0.2.0
Main Quest
Added new main quest: Heroic Duties and Unexpected Arrival
New Character - Paglia
Introduced Paglia, a new character with her own scene
First appears during Unexpected Arrival
Also features in:
Uninvited Observer (side quest)
Popularity Poll 0.2.0 event
Includes:
1 dedicated scene
1 mini-scene appearance
New Affection System
The debut of the new Affection System, so far featuring:
Mary
Lyra
Includes:
1 base scene per character with 2 costume variants per scene, meaning 6 new scenes in total
2 new affection quests
Unlock conditions:
Lyra: After
Whispers in the Wood
Mary: After speaking to her with 5 guests in the house
Costume Scene Variants: Find the corresponding costumes in chests around Caldrithia
New Achievement System
Added full Achievement System
Unlocks after
Unscheduled Arrival
32 achievements available
3 milestone rewards (one per island)
Includes Achievement Sky Islands area
New Event
Added new event: Harlu's Grand Popularity Ceremony (0.2.0 Popularity Poll Event)
Features 1 main scene and 3 mini-scenes
Unlocked from players room after finishing Ball Beyond Midnight, Once Upon a Winter's Cabin and Unexpected Arrival.
New Areas
Waystead Village
Fourmarch Rest Inn
Rocky Field
Magma Cave
Rat Cave
(Crownreach Sewers – requires upgraded shovel)
Unnamed Clearing
Imp Site
Lighthouse Floors 1–4
Mansion Courtyard
Achievement Sky Islands
New Side Quests
Uninvited Attention
Buried and Bound
Alternative Sources
A Curious Fountain
New Monster Crafting Recipes and Ingredients
New Craftable Items
Scaleburn Blade
Stoneguard Defender
Volcanic Bastionblade
Lunaris Twinstring Bow
Heart of Everwinter
New Materials
Obsidian
(can be smelted into Refined Obsidian)
Lunarwood Planks
Fire Lizard Scale
New Farmable Drops
Golems → Rocks
Rats → Rat Pelts
Fire Lizards → Fire Lizard Scales
New Fusion Crafting System
Added Elemental Catalysts, reusable items used to fusion craft stronger pieces of gear
Reworked Content
Start of Game Rework
Reworked house tour sequence so that players now begin with the Crystal of Seraphina in their house, already activated
Added a guided tutorial quest which starts after the house tour and walks players through several key mechanics of the game
Reworked starting class selection so that players now begin with all four classes and their starting class quests unlocked immediately
Visiting Efelhi in Feraldon and receiving a tour of the town is now it's own dedicated quest
Scene Rework
Reworked first Mary scene now with much improved animation, lighting, models and writing
Character Portrait Rework
The following characters have received updated, 3D character portaits for dialogue:
Ellie
Morgana
Mira
Sylvie
Doll
Qingyan
Freya
Nyssa
Celestia
Selene
Mara
Harlu
v0.1.9
2 New Side Quests - One involving Princess Elara and the other involving the Crownreach Forest Fairies
2 New Scenes and 9 New Miniscenes - Total of 34 new animations
New Ancient Dwarven Crystal - Used to unlock new room upgrade
Four new Areas - Including new farming locations for skeletons and bandits
3D Face Portraits – Elara, Primrose, Mary and Lyra now use new 3D dialogue portraits
World Adjustments – NPC placements updated, additional NPCs added and slight map changes
Item and shop adjustments - Small changes in preparation for patch 0.2.0
Bug Fixes & Balance Changes - Major Android bug which stopped videos from playing has been fixed
v0.1.8
New Content
Added the new quest
Buried Treasure
, which can be started near the Eastport Lighthouse. Completing this unlocks access to the Pirate Class.
Added the
Pirate Class Quest
at Pirate level 10, including new areas and a new scene.
Added a new
Class Leader
, complete with her own scene.
Added a new
Qingyan Companion Quest
, featuring:
A new area
Qingyan-exclusive accessory
A fully animated new scene
Added four new areas:
Coldwind Trail
Seaside Cliff
Pirate Cove
The Sea’s Fortune (Pirate Ship)
Added a new Clown class skill:
Clumsy Cascade
This can be learned via the skill book
Harlu’s Guide to Juggling
, obtained by returning to Harlu’s tent after completing the quest
Clowning Around
.
Added three new monster crafting accessories:
Coldcrest Icebound Charm
— Attack + Defence, imbues Ice element
Swiftwing Galebound Charm
— Attack + Agility, imbues Wind element
Stormcrow Equilibrium Charm
— Combined version granting Attack, Defence, Agility, and both Ice + Wind elements
Added the new
Popularity Poll
, allowing players to vote for favourite companions and class leaders. Results will influence content in the upcoming 0.2.0 update.
Changes & Fixes
Fixed multiple bugs where quest items would remain in the player’s inventory after being turned in.
Fixed issues where the Fortune Teller would continue giving hints after certain quests or secrets were completed.
Adjusted
Knight’s Vow Emblem
, slightly reducing its counter-attack chance.
Additional minor balance tweaks and fixes.
Potential Issues
Whilst I have been testing all the new content this patch, I have simultaneously been working on future content in the background. Because of this, there may be issues that have arisen since I tested that part of the game. Feedback on the new content is as always, greatly appreciated.
v0.1.7
New Content
The
Adventurer’s Guild Update
introduces a new
Class Promotion Exam quest
, allowing players to progress from
Rank F to Rank E
.
Added
1 new F-Rank
request board quest and
4 new E-Rank
request board quests.
A new Adventurer’s Guild quest featuring
multiple-choice dependent endings
, allowing player decisions to influence the outcome.
A brand new
Personal
Quest featuring
Ellin
the guild receptionist.
New scenes have been added featuring the Guildmaster
Vaela
and the receptionist
Ellin
.
Added
three new areas
Adventurer’s Guild Promotion Exam
Bannerbound League Arena
Crossroads
Added
12 new achievements
, continuing the gradual rollout of the achievement system.
Trial implementation of a new
affection system
. One decision currently allows the player to gain
+1 affection with Lyra
. At present, this has no gameplay effect and is being introduced as a foundation for future updates.
Removed
Essence of Origin
and replaced it with new
EXP Books
, which can be found around the world and grant a large EXP boost to a specific class when read.
Dialogue changes for Sylvie during the
Path of the Archer
quest.
Changes / Fixes
Small lore adjustments in the
Feraldon Museum
relating to the Dragonkin country.
Buffs to Sylvie and the Archer class
, including significantly reduced SP costs across Archer skills.
Large buffs to
Clown Class
skills with increased attack damage ratios.
Reduced
DEF and MDEF values
for all classes and companions, meaning enemies will now deal more damage.
Added new dialogue and a shop to the
Eastport Café
, including new consumables:
Eastcoast Roast Coffee
and
Cup of Tea
.
Reduced the size of the player's mansion garden slightly.
Added the
Adventurer's Guild Card
as an item which is received upon joining. Displays current
Guild rank
and
prestige count.
Added patches of forest to the overworld map.
Potential Issues
The changes to defence values and overall combat balance are
not fully tested
, and some encounters may feel too difficult as a result. Feedback on combat difficulty is especially appreciated during this Early Access period.
Save Compatibility
Older saves won't be able to gain access to the Adventurer's Guild Card. Additionally saves from certain locations in either the world map or the outside of the player's mansion, might cause players to become stuck.
v0.1.6
New Seasonal Quest – Once Upon a Winter Cabin
Visual Upgrade – Game and video resolution increased to 1600×900
New Location – Abandoned Graveyard
Achievement System (Trial) – One hidden achievement to discover
Bug Fixes & Refinements – Multiple quest and event fixes
v0.1.5
New Companion Quest and Scene for Doll
New Scene for Librarian (30 Books)
New Skill for Doll
Bugfixes (If android users encounter issue where videos stop loading, use the switch in the player's mansion main hall, save the game and then restart the application)
v0.1.4
New Halloween Event "Ball Beyond Midnight"
4 New Scenes
New character "Carmilla"
Bugfixes
v0.1.3 fix2
Fixed Bug that occured when revisiting certain boss locations.
Fixed a bug causing Clown class skillbook to give scurvy debuff instead of a new skill.
Fixed a bug which stopped Harlu from spawning during the second clown quest if quests were completed in a certain order.
Fixed a bug causing videos to unload incorrectly and break scenes.
v0.1.3 fix
Fixed a bug where battling Goblins in Crownreach Forest would result in a never ending battle sotlocking the game.
Fixed a bug causing Rina's scenes to not load videos.
v0.1.3
Added 5 New Scenes
Added New Crafting System
Added New Character: Nola
Added 4 New Class Quests for Knight, Mage, Priest and Archer (Available after level 10)
Added Reworked Sylvie scene
Added 30 New Weapons, Armours and Accessories
Added 5 New Areas
Added New level up essence items
Added 2 New Side Quests
Added Elemental Type Advantage System
Added Priest Class Weapon Overhaul
Re-encoded all video files to MP4 for smoother playback, faster loading and greatly reduced filesize
v0.1.2
10 new fully animated 3D Scenes
1 new scene rework
4 new companion quests
4 new side quests
Android release
Map adjustments (Several areas made smaller)
Option to change player and other nameable character's names (See book in player's bedroom)
Several bugfixes
v0.1.1
2 New scenes
1 New Quest
1 New Companion
1 New Patreon Exclusive Companion
1 New Patreon Exclusive Scene
Several Bugfixes
Several gameplay balance changes
v0.1
Initial Release
Player reviews
Player rating4.0 / 5 · 11 ratings
Written reviews11 · avg 3.9★
Positive (4–5★)73%
Latest review2026-08-16
beepbeepbeepbeep12026-08-16★★★★★
This game pisses me off. Absurd amount of tedious grind for the sparsest amount of scenes, mostly handjobs. Needlessly giant map and huge spaces between locations you will need to walk through over and over again, even with the warp…
MidnightKing2026-07-28★★★★★
Review for v0.2.3 I tried to get into this game a few times because I feel like I can see something enjoyable deep beneath the surface, but the crux of the issue is that the game is just uninteresting. On…
joao28042026-06-17★★★★★
incredible game though there is a bug that when you equip things with knight class it says: TypeError Cannot read property 'clamp' of null please fix it,it softlocks you into archer class unless you click on optimize equipment to equip…