Knockout Master is a Ren'Py adult game by MooN. You play a boxer aiming to win the Boxing League title while handling relationships with people around him. The story asks which partners he chooses and what he will do to earn the Knockout Master name. It uses 3D animated visuals and a dating sim structure.
The current build is S2 Round 14a, released May 3, 2025, and development is ongoing, with Season 3 planned as Knockout Master 2. It runs on Windows, Linux, Mac, and Android in English, with no censorship. The latest update fixes a secret ending that could fail to trigger, corrects a low RP path scene jump, repairs an error tied to Leah's phone wallpaper, reworks some renders, and includes other minor fixes.
Developer's description
Knockout Master puts you in the role of a boxer, whose dream is to become the champion of the Boxing League, while at the same time dealing with different people in his life. Who will you choose, and what will you do to become the Knockout Master?
Season 3 will be Knockout Master 2 as a Sequel.
S2 - Round 14 (v1.14a):
Fixed an issue that caused a secret ending not to trigger
Fixed a minor bug in the low RP path that caused the game to jump to the wrong scene
Fixed an issue with Leah's phone wallpaper causing an error message
Reworked a few renders
Other minor fixes
S2 - Round 14 (v1.14):
3200+ New Renders
280 New Animations
2 Animations reworked (R13)
5 New Phone Wallpapers
14 New Gallery Pages
Phone apps updated
Minor code changes to the Text Messages app
New Music & Sound Effects
Minor code fixes
S2 - Round 13 (v1.13):
Script fixes
Typos corrected
2400+ New Renders
180+ New Animations
14 New Gallery pages
4 New Phone Wallpapers
Phone Apps Updated
New Music & Sound effects
Minor fixes
S2 - Round 12 (v1.12):
1800+ New Renders
100+ New Animations
SpicyGram App updated
News App updated
10+ New Gallery pages
3 New Phone Wallpapers
New Music & Sound effects
Minor code & Typo fixes
S2 - Round 11 (v1.11):
1700+ New Renders
86 New Animations
Phone code & UI changes
New "Social media" app
New "News" app
12+ New Gallery pages
3 New Phone Wallpapers
Main Menu Background updated
New Music & Sound effects
Minor code fixes
S1 - Round 1-9 (v1.01): (June 30, 2023)
300+ Renders reworked
100+ New renders
67 Animations converted
1 New animation
Major dialogue editing (R1)
Minor dialogue editing (R6)
Phone code & UI changes
In-game notifications Improvements
Round select disabled (S1)
Major code rework
bugs and typo fixes
S2 - Round 10 (v1.10a): (December 28, 2022)
12 Renders reworked/edited
Typos corrected
S2 - Round 10 (v1.10): (December 10, 2022)
1800+ New Renders
34 New Animations
Textures Updated for all main characters
Phone UI improvements
In-game notifications Improvements
New Character (Natasha)
3 New Phone wallpapers
8+ New Gallery pages
Main Menu Background updated
New Music and Sound effects
Renpy engine updated to version 7.3.5
S1 - Round 1-9 (v1.0):
UI Improvements
Typo fixes (Thanks to Mellified)
Round 9 (v0.9):
1550+ New Renders
60 New Animations
35 Renders reworked
New Messages app added to the phone (Implemented in all Rounds)
New Phone notifications when the player unlocks a new phone wallpaper, unlocks a new character (Stats menu & Gallery) or receives a new message.
New animated backgrounds (Gallery and Phone wallpapers app)
New Main Menu Background
Phone UI Improvements
New Character (Violet)
+4 New Phone wallpapers (Violet +2, Candy +1, Scarlett +1)
+6 Gallery pages (Leah +3, Alice +1, Rose +1, Violet +1)
Major dialogue editing (R2 & R3)
Minor dialogue editing (R1, R5, R6 & R8)
01 Scene removed (Round 1)
Script changes (R1-8)
Added delete save button
New Music and Sound effects
Round 8b (v0.8.2):
Gallery & Script fixes
Typos corrected
Round 8 (v0.8):
815+ New Renders
32 New Animations
04 Animations reworked (R1)
08 Animations recoded (R1-3) (laggy Animations fixed)
New Phone System
New Round Select Menu
New Music Room
New wallpapers (Alice, Leah, Rose, Scarlett, Candy)
06 New Gallery pages (Alice +3, Rose +1, Scarlett +1, Candy +1)
New scene added to Round 1 (Leah)
Minor dialogue editing (R1, R4, R6)
New Music & Sound effects
Script changes & UI Improvements
Bugs and typo fixes
Round 7a:
Textbox op slider bug fixed
Round 7:
1070+ New Renders
29 New Animations
160+ Renders reworked
02 Animations reworked (R1)
01 Animation removed (R1)
Major dialogue editing (R1)
08 New Gallery pages (Alice +1, Leah +3, Rose +3, Scarlett +1)
UI Improvements
New Textbox opacity slider
New Music & Sound effects
New Android version
Round 6b
110+ Renders reworked
15 New Renders (R1&2)
Minor fixes (textbox, animations)
Script changes
Round 6a
Hard pauses removed
Typos corrected
Round 6
1000+ New Renders
21 New Animations
New Music & Sound effects
New Character
Minor dialogue & RP changes
UI tweaks
9 New Gallery pages (Alice +3, Leah +1, Rose +3, Sc +2)
30+ Renders reworked/edited
Patreon URL changed to
Patreon.com/MooN_Games
Compatible with Round 4/5/5a/5b save files
Round 5a
All the laggy Animations are now fixed
Gallery Improvements
Power saving option Added to the settings menu (Turn it off for better performance)
Round 5
1090+ New Renders
36 New Animations
65+ Renders reworked (R1, 2 & 3)
New Music & Sound effects
New Animated main menu background
Gallery reworked (Added character selection menu) +7 New pages
UI tweaks (text, textbox)
Minor changes (New choice Added to Leah's path "Round 3", Leah's restaurant changed)
Round 4
920+ New Renders
13 New Animations
5 Animations reworked (Round 1&2&3)
100+ renders reworked (Round 1&2)
New Animated main menu background
UI Improvements
New Gallery (15 Pages)
Characters now will blink in many renders
New Music & Sound effects
Script changes
Round 3d
Hard pauses reduced
New Stats tracker
3 more renders reworked (Round 1&2)
Corrected typos
RP changes
Round 3
600+ New Renders
14 New Animations
1 New Character
34 renders reworked (Round 1&2)
New Sound effects
Minor dialogue changes
Round 2
400+ New Renders
3 New Animations
UI Improvement
Added in-game Music
Round 1
Initial release
Player reviews
Player rating2.0 / 5 · 20 ratings
Written reviews20 · avg 2.4★
Positive (4–5★)5%
Latest review2026-03-18
What players say
Mixed reviews overall, with many players finding the game boring, unevenly written, and incomplete despite decent visuals and some potential.
5★0
4★1
3★8
2★8
1★3
Players like
Attractive models and renders provide appealing visuals
The premise and potential appeal to some players
Some players enjoy the slow-burn slice-of-life pace
Common complaints
The story is often boring and bland
Dialogue feels wooden, unnatural, or inconsistent
Players criticize the story as unfinished or incomplete
Best for players who want adult boxing-themed harem stories and can tolerate slow writing.
Summarised from 20 written player reviews.
Issikka2026-03-18★★★★★
I have to admit my defeat on trying to get through this game... On paper it has a few faults(like being a billionaire that has no staff, no car and wants to go pro boxing) but it seemed like it…
MickNRorty2026-02-09★★★★★
This game has the potential of being great, yet it is hold back by its dialogues. The MC either talks like an incel or an enlightened philosopher or a silver-tongue lover. There are occasional grammar mistakes but they are forgiven…
holaje122025-12-25★★★★★
Boring game with cliché, one-dimensional "villains" who are more annoying than threatening. The LIs are as basic as they come, with no charm whatsoever. The ones introduced later are even worse, Violet and Scarlett, a lesbian/bi and a stripper. Wow…