Isekai Bastard

by Bastard-Sama

Censored Windows Linux Mac
Versionv0.14
EngineUnity
Released2026-01-14
Updated2026-01-14
LanguageEnglish

About Isekai Bastard

Isekai Bastard is a Unity-made adult adventure game by Bastard-Sama. You play a withdrawn, porn-obsessed man who feels worthless after being mocked by others. After clicking an odd advertisement for the MMORPG Necronomica, he is pulled into that gothic fantasy world, where cruel settings and monster girls await. Learning he can carry in-game abilities back to ordinary life, he aims to become a villain in both places while gathering monster-girl allies. The game is presented in 3D CG, with animated scenes, and it warns that some heroines appear in sharing-related content.

Current build is v0.14, released January 14, 2026, and development remains ongoing. It runs on Windows, Linux, and Mac in English, with censorship. The latest changelog marks the Chapter 1 finale: it adds a two-part continuation of the main story, introduces other players, the Architect, battles, lore, and eleven additional characters. It also completes the bordello construction, adds new heroines and scenes before Chapter 2’s management system, and gives Shesevelle a bonus tavern scene after Chapter 1. Laura gains new bathtub, tea, and beach events, while Jessica receives updated shower scenes, an added bath scene, and a major bowling event.

Developer's description

Take on the role of an Ugly Bastard. A reclusive, antisocial, porn addict who spends every day locked in his room. With no friends, no future, and no purpose, he is treated like a loser by everyone around him. One day, while surfing the internet, he clicks on a strange ad about a new MMORPG on the screen. When he tries to create his character, he is "sucked" into the game called " Necronomica ". A gothic fantasy world that is ruthless and cruel, but full of monster WAIFUS. When he discovers that he can return to the real world with all of his character's powers, He makes a decision: to become a true villain in both worlds and have an army of hot monster girls by his side. (This game contains NTS (sharing) content with SOME heroines. Please be warned before playing) ​

Download Isekai Bastard v0.14

Changelog

v0.14 Chapter 1 Finale New Scenes and Events Necronomica and Main Story Scenes include: Continuation of the Necronomica story in two parts Introduction of the other players, the Architect, battles and lore featuring 11 additional characters️ Finalization of the bordello construction New heroines and sex scenes before the bordello management system for Chapter 2 New bonus sex scene for Shesevelle at the tavern after completing Chapter 1 Laura's New Scenes New scenes in the Bathtub Event Threesome event (Laura/Jessica) Tea event at Grace's house now has 4 spicy scenes: (MC/Laura) (Tucker/Grace) Several scenes in the Beach Event ️ Jessica’s New Scenes Updated shower scenes with fixed requirements and added one more sex scene with Jessica in the bath Major Bowling Event for any day in the Classroom when it's not raining, and a Threesome with Hanna Several scenes and Pregnancy Flag for Jessica in the Bonus Beach Event ️ Added Incubus scene to the event: Sleep Event Scene with Serena Helena’s New Scenes More scenes added to the event: Saturday Morning Visits Several new scenes for the Getting Dressed event in her room The Laptop event was updated with new scenes and an event where Helena lets the MC sleep in her bed Several scenes in the Beach Event ️ and in the Alone at home Event ️ Sex scene and romance with Serena (NTS/FUTA) Technical Upgrades ️ Fixed: Fixed a bug where thumbnails for all save slots were being deleted. Fixed: Laptop event was adjusted to allow progression without NTS requirements if Helena has high flags. ️ Fixed: Automatic Sunday morning event was changed to allow resetting Serena's FUTA Flags. Fixed: Increased maximum input length from 10 to 14 characters when naming relationships and the MC. Fixed: Loading a save while a long SFX audio is playing no longer bugs the audio in the newly loaded save. v0.1.3b - Public Release (May/25/2025): Necronomica and Main Story Scenes: Implemented the Incubus Form for the player character, featuring a new spell and a scene in this form. 1 romantic scene 1 sex scene and a short cinematic event Laura's New Scenes 1 major Romantic Date with 4 spicy scenes in the " Breakfast With Helena" event 2 scenes in the “ Oversleeping ” event (Requires Laura’s Corruption ++ ) 2 scenes in the “ Reading in Bed ” event (Requires Romantic Date ) 1 scene in the “ Late Night Massage ” event (Requires Romantic Date ) 1 NTS scene with James in the “ Late Night Massage ” event (Requires Romantic Date and “ Sharing ” enabled) 1 bath scene, a work-in-progress system for future bathroom sex scenes (Requires Romantic Date ) Unlocked a new corruption level: " Girlfriend " for Laura Jessica’s New Scenes 2 major scenes in the “ Dinner ” event (Requires Jessica’s Corruption ++ ) 3 minor scenes. Unlocked a new corruption level: " Cum Addict " for Jessica Helena’s New Scenes 1 bonus scene for the “ Panty Fun ” event (click on the dresser in the afternoon) 1 bonus scene for the “ Late for Work ” event (Requires Jessica’s Corruption ++ ) 1 bonus NTS scene with Tucker for the “ Late for Work ” event (Requires “ Tucker Sharing ” enabled) Technical Upgrades ️ Fixed: Rare bug in the save system where deleting saves could brick the save slot Fixed: Bug where some animations had slightly increased speed depending on the user’s FPS ️ Fixed: Bug in the tracker that showed Helena in places where she wasn't ⚠ Fixed: Some scenes now connect better and have their BGM audio fixed Fixed: Typos and minor bugs Heads-Up: Save Smart to Avoid Issues! To steer clear of problems, make sure to save at the player’s bed in previous versions, then load that save in the new version. v0.1.2b - Public Release (Mar/04/2025): Some bugfixes and tweaks to the girl's relationship points. ' Run in Background ' mode can be changed in settings.ini . Windowed mode adjustments v0.1.2: Shesevelle is the star of this update! Many scenes feature her, including: 2 romantic scenes 1 regular event in the dungeon 2 major spicy events with multiple animated scenes (FUTA) 1 major sex scene (Non-FUTA). (If you choose not to view FUTA content, you’ll miss 50% of her sex scenes, but I promise to create more non-FUTA scenes for her in the future!) Meet Echidna A new character joins the MC's party! 1 romantic scene 2 sex scenes Natasha’s New Scenes A NETORASE event featuring Guh'trak (Scene commissioned by subscriber vote!) You can now review her 'jug' scenes Jessica’s New Scenes Corruption++ Unlocked! 1 major event with 3 spicy scenes during automatic Sunday morning visits A Corruption++ scene added to the "Getting Dressed" event Helena’s New Scenes 1 major event on her bedroom dresser (click on the dresser in the afternoon) 1 major event in her room featuring 3 spicy scenes and a big NTS scene with Tucker 1 new event at the vanity with 2 small scenes and a framework for future events 1 major event with several scenes during her new automatic Saturday morning visits Technical Upgrades ️ Fixed: Windowed Mode is now working and resizes the game to 1664x936 . Skip-Speed +40% . I can't increase it more than that due to bugs. Changed the way that audio files were loaded into memory to try to mitigate the excessive memory usage when loading the game for some users. Reduced the grind by making events like " Dinner " give one point with all girls and the event " Food Contamination " give +2 instead of +1 points. Some events require fewer points and events like working out at the gym give points now. No more weekly point loss. Added: Skip Prologue function ⏩ Added: End-of-content warnings on several scenes ⚠ Added: Skip menus for long scenes ️ Integrated: Online Walkthrough via a button on the MC’s phone Fixed: Save/load thumbnail glitches, wrong image loads during animations, and pesky UI bugs Added: A handy Save/Load toggle button Removed: Save/load text overlay and bathroom Jerk-off scenes (They’re being reworked for a future update) v0.1.1d (Jan/18/2025)- Major Bugfix: Fixed Game-breaking bug in maximum allowed relationships. Now relationship points should work correctly. Added multiple save slots Added Settings in main menu Added QUICKEVENT function for several scenes. Quickskip (left CTRL) is 200% faster. Fixed Save menu screen that was allowed in places where it shouldn't Added detailed information in Relationship Panel for the girls No more relationship decay Added Improved relationship messages Function to allow Skip Prologue Added option to shorten the office event with Helena Shortened logo and warning time Fixed Typos and minor visual bugs v0.1.1c (Jan/15/2025): Fixed Jessica Night Event Fixed Linux Cursor Bug Texts are now instant and with no transition pauses. Easier to get relationship progress with all girls. Fixed bugs and freezes in sandbox events Added quickskip function Reduced transition times Fixed Late night events. v0.1.1: Grammar/Text fixes Fixed a bug on the SAVE/LOAD interface Improved the navigation system between separate places Added an animated overlay system on background images that greatly improved the menus and loading screen Implemented the ability to advance dialogue with the mouse instead of just the space bar Implemented the smartphone contact system WIP Fixed some typos and remade some very old renders. v0.1.0 - Initial Release: 2640+ New Images 121 Animations 19150+ Lines of Code 165 Music and Ambient Tracks 170+ Sound Effects Updated Dialogue Interface

Player reviews

Player rating 4.0 / 5 · 20 ratings
Written reviews 20 · avg 3.5★
Positive (4–5★) 55%
Latest review 2026-04-04

What players say

Mostly positive but divisive, praised for models and story despite grind, protagonist, and NTR.

5★ 9
4★ 2
3★ 2
2★ 4
1★ 3

Players like

  • High-quality, realistic character models and renders
  • Interesting premise and corruption/harem story
  • Large amount of content for one year

Common complaints

  • Slow, repetitive grind with poor skipping
  • Ugly male protagonist and poor male models
  • NTR and sharing undermine villain power fantasy

Best for players who enjoy realistic models, corruption harem stories, and patient grinding.

Summarised from 20 written player reviews.

bvb157 2026-04-04 ★★★★★
Downsides: Too grindy Many unnecessary scenes that aren’t skippable Upsides: Top-notch renders Realistic characters (with cellulite and love handles) A huge amount of content for just one year of development It’s far from perfect, but it’s a very good game…
Niels Holgersson 2026-01-23 ★★★★★
I'll come straight to the point 1. The idea of the game is absolutely great, ugly little duckling becomes the vulture, he's great. 2. Implementation is awful, too complicated, you drag through scenes for hours, a walkthrough that isn't worthy…
Critical Darling 2026-01-22 ★★★★★
The premise of becoming a powerful Evil Lord in an isekai world is great, but the "NTS" mechanics completely ruined the experience for me. It’s hard to feel like a dominant, all-powerful villain when the game forces cuckold-style situations on…

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