About the Game
Choose Your Era — 1880 to 2026+
Start your career in any year from the bare-knuckle age of the 1880s to the modern mega-fight era and beyond. The game world evolves authentically with the times — title fight rounds change from 25 to 20 to 15 to 12 as the sport modernises, sanctioning bodies appear in their real years (one world title until 1963, then WBC, IBF in 1983, and WBO in 1988), venues shift from Yankee Stadium and the Polo Grounds to Caesars Palace and Riyadh's Kingdom Arena, fighter nationalities reflect each era's talent pools, and purse money grows from thousands to tens of millions. Boxing news announces every historic rule change as it happens.
Play As A Legend
Don't just fight alongside the greats — become one. Choose from the 300 greatest heavyweights of all time and relive their careers from the beginning. Each legend starts with their authentic overall rating, real fighting style, true hometown, and the exact age they turned professional. Take Iron Mike Tyson from his 1984 debut as a wrecking machine, or step in as Muhammad Ali — turning pro at 18 in 1960 as the reigning Olympic gold medallist. Then rewrite history: drop any legend into a different era and see how they'd fare against the champions of another age. Start fresh at 0-0 and build their legacy your way.
2,500+ Real Heavyweight Fighters
Ali, Tyson, Foreman, Frazier, Louis, Dempsey, Lennox Lewis, Holyfield, Holmes, Marciano, Klitschko, Fury, Usyk, Joshua, Wilder, Jack Johnson, Jim Jeffries, Bob Fitzsimmons, and over two thousand more. Every significant heavyweight from 1880 to 2026 and beyond (upcoming top-rated amateurs) is in the game with authentic ratings, fighting styles, stances, and nicknames. Start in their era and share the ring with the greats — or begin in a different decade and watch them emerge as young prospects turning professional.
Your Journey to the Top Starts Here
Start as an unknown amateur and fight your way through a living, breathing heavyweight division of 500 unique boxers at any one time. Every fighter has their own record, style, strengths, weaknesses, and personality. Choose your fighting style, pick your stance, and begin the long climb from unranked nobody to undisputed world champion.
Live Round-by-Round Fight Commentary
Every fight unfolds in real time with rich, detailed commentary that makes you feel ringside. Choose your strategy before each round — box from range, apply pressure, fight on the inside, or go for the knockout. Watch stamina drain, cuts open, swelling develop, and momentum swing round by round. Legendary fighters even bring their signature moves to the ring — see the Ali Shuffle and the Dempsey Roll light up the commentary. Judges score independently with realistic split decisions, majority decisions, and controversial verdicts. No two fights ever play out the same way.
A Title for Every Era
In the early eras, there's one heavyweight champion of the world — winning that single belt makes you the champion, undisputed by definition. From 1963 onwards, sanctioning bodies fragment the picture: the WBC arrives, then the IBF in 1983, then the WBO in 1988. By the modern era, four world titles sit at the top of the mountain.
Regional titles emerge in their own historical order as stepping stones for rising contenders. The British title (1891) is the oldest, followed by the European (1946), Oriental and Pacific (1952), Commonwealth (1954), North American (1969), African (1973), and Pan Asian (1995). Hold all four world belts simultaneously and become the undisputed heavyweight champion of the world.
A Living, Breathing Division
This is not a static roster. The heavyweight division evolves every month. Fighters age, decline, and retire. New prospects turn professional from the amateur ranks. Champions rise and fall. Mandatory challengers are ordered. Title fights are scheduled, cancelled, and rescheduled. Sons of legendary fighters emerge carrying their father's surname and a genetic edge. The division has a life of its own — and you are part of it.
Authentic Fighters, Authentic Identities
The legends fight like themselves. The biggest punchers in history carry power and killer-instinct ratings true to their real careers, so the sluggers hit like sluggers and the slick boxers box. Authentic nicknames appear throughout the game — across rankings, fight cards, results, news, and profiles. Square off against "Iron" Mike Tyson, Tyson "The Gypsy King" Fury, "The Brockton Blockbuster" Rocky Marciano, and hundreds more. Fighters carry their real hometowns, and amateur honours like Olympic gold medals are recorded in their biographies.
Rivalries That Write Themselves
Rivalries form naturally through close fights, controversial decisions, callouts, and press conference confrontations. Your rivals will call you out in the media, demand rematches, and fuel grudge matches that the whole division watches. Some rivalries last an entire career.
Deep Career Management
Every decision matters. Choose your opponents carefully — fight too far above your level and you risk a devastating loss; stay too safe and you will never climb the rankings. Before every fight, select a training camp — Power, Speed, Defence, Cardio, Technical, or Brawler — each with genuine tradeoffs that shape how your fighter performs on the night. Manage your fighter's age, energy, and physical condition across a career that can span over a decade. Purses grow from thousands to millions as your reputation builds. Watch your social media following explode as you become a household name — or build your fanbase the old-fashioned way in the pre-internet eras.
Annual Awards and Recognition
At the end of every year, the boxing world hands out its awards. Fighter of the Year, Young Fighter of the Year, Fight of the Year, Knockout of the Year, Upset of the Year, and Comeback Fighter of the Year — each with a detailed writeup that captures the story of the season. Win them and cement your legacy. Watch them go to your rivals and fuel your motivation.
Complete Fight Records and Statistics
Every fighter in the division has a full BoxRec-style record with detailed fight history, opponent records, methods of victory, venues, and purses. Active fighters retain their full pro fight history with no cap, so every bout is documented. Your own career page tracks everything from knockouts and win streaks to earnings and title defences. The all-time records page celebrates legends past and present — most career wins, longest title reign, oldest first-time champion, retired with fewest defeats, and many more.
Watch the Division Unfold
You are not the only story. Watch title fights play out with full commentary. Follow the rise of young contenders. Track who holds each belt. Read the boxing news that covers every major result, upset, and title change in the division. The heavyweight landscape is always shifting.
Olympic and World Amateur Championships
The amateur scene runs in parallel with the professional division. Olympic Games every four years and World Amateur Championships every two years produce medal winners who turn professional and enter the rankings. Olympic gold medalists arrive as elite-tier prospects, with appropriate floors for silver and bronze — and their medal honours follow them into their professional biographies. Some of them may become your greatest rivals.
Hall of Fame and Legacy
When the time comes to hang up the gloves, retire and see how your career measures up. Your record, titles won, title defences, earnings, and achievements are preserved in the Hall of Fame. Then start again — create a new fighter in the same universe and enter an evolved division where the legends you fought alongside are now retired icons.
Built for Replayability
No two careers play out the same way. Eight fighting styles, multiple stances, adjustable difficulty, 300 playable legends, and a division that generates its own drama ensure that every playthrough tells a different story. Generate up to 1,000+ years of heavyweight history and watch dynasties rise and fall.
Features at a Glance
Play as any of the 300 greatest heavyweights of all time — authentic ratings, styles, hometowns, and turn-pro ages
2,500+ real heavyweight fighters from 1880 to 2026 with authentic ratings and styles
Authentic nicknames and signature moves for legendary fighters
Era Authentic mode — title rounds, venues, nationalities, and purses adapt to the year
Sanctioning bodies appear in their real historical years — one world title pre-1963, four belts by 1988
500 unique AI heavyweights with distinct styles and records at any given time
4 world titles (WBC, WBA, IBF, WBO) plus Ring Magazine and 7 regional belts
Live round-by-round commentary with adjustable speed
Round-by-round strategy selection — adapt your gameplan as the fight develops
Pre-fight training camps with meaningful stat boosts and tradeoffs
Realistic judging with split decisions, majority decisions, and controversial cards
Organic rivalry system with callouts, grudge matches, and media drama
Son of Legends — children of great champions emerge in the division
Annual awards with full editorial writeups
Complete BoxRec-style records for every fighter — full fight history retained for active fighters
All-time records page with career, era, and milestone leaderboards
Olympic Games and World Amateur Championships, with medal honours in fighter bios
Boxing news that covers every fight, upset, and title change
Hall of Fame for retired legends
Continue Universe mode — retire and start again in the same division
8 fighting styles and multiple stances
Adjustable commentary speed, font size, and sound settings
Career earnings, social media growth, and commercial progression
Deep career mode spanning decades of heavyweight boxing
All fighter ratings, records, and statistics are fictional estimates for entertainment purposes. No endorsement or affiliation with any real person or organisation is implied.
Screenshots
16 imagesVersion Information
Steam Patch Notes
Official update history
• NPC fight records are no longer lost on save
• Watched fights report the right winner, with scorecards
• Fighters no longer age at double speed
• Stats no longer go backwards — stat ceilings removed
• Power grows into a fighter's prime, then fades with age
• Every retired fighter is kept in the Hall of Fame
• Rivalry stat boosts are temporary again
• Saving a long career no longer freezes
Thanks for the reports — every fix came from one.
Your stats no longer go backwards. Fighters generated with a standout
attribute were having it quietly pulled down to a hidden limit — heart,
stamina and recovery dropping on young fighters who hadn't taken a punch.
Fixed, and we've removed stat ceilings altogether. There's no cap on how far
an attribute can develop now.
Power grows properly too: a fighter rated 85 reaches the mid-90s in his prime,
holds it through his early thirties, then fades to around 90 at forty and 80
at forty-five. Still the last thing to go — it just goes eventually.
Also fixed:
• Post-fight interviews broke against fighters with an apostrophe in their name
(Philadelphia Jack O'Brien and eleven others)
• Closing the game mid-fight could leave a career stuck
• Extra safeguards around advancing the month
Thanks for the reports — all of this came from them.
-Fixed retired fighters showing the wrong record in BoxRec — it now always shows your own career, not the last fighter you viewed
-Dynasty mode now simulates the boxing world forward to when your son turns pro — fighters keep fighting, aging, and retiring, and new prospects rise, instead of the world freezing while you wait
-Fixed save export on mobile — exports now open the share sheet so you can save the file anywhere
-Fixed "Export All Saves" crashing on Android
-Fixed Arrange Fight purses changing when you back out and re-enter — offers are now locked for the month
-Fixed the name field staying locked after browsing pro fighters when creating your own boxer
-Fixed non-title fights being incorrectly described as "12 rounds" after the bout
Durability is now rolled by talent at creation, like chin — elite prospects can roll all the way to 100
Bug Fixes:
-Fixed careers losing their money after updating to the finance module — affected saves automatically recover their full bankroll on next load
-Fixed the finance migration itself — updating an existing career now carries your money into the new finance wallet instead of starting you at ~$20K
-Fixed bets being wrongly refunded as "fight off" on fights that visibly happened (e.g. fights you watched live) — unmatched bets now settle from the fighters' own records and pay out correctly
-Fixed chin & recovery stats being wrongly reduced when loading older saves (e.g. 91 dropping to 80) — your fighter permanently keeps the stats he was born with
-Fixed retiring and creating a new fighter carrying over state from your previous career — cloned opponents, inherited stats, and crossed records are cleared on a fresh start
-Durability is now an independent random roll based on talent at creation — identical to chin and recovery, so elite talents can roll up to 100 (previously capped around 80); applies to newly generated AI prospects as well
-New: EXPORT SAVE FILE — downloads your save as a .json file with no clipboard size limits, for backups, device transfers, and support
-New: IMPORT SAVE FILE — load an exported save file into Slot 3 from Settings
-Fixed drawn vacant title fights instantly re-ordering the identical fight on the next screen — the sanctioning body now rests two months before issuing a fresh, declinable rematch order
-Fixed "Big" John Tate's missing nickname
Expanded firstnames and surnames for UK/USA/Ukrainain and Russian boxers.
Added a further 80 countries which you can select at game start including England, Scotland, Portugal, Belgium, Hong Kong, Singaore, etc.
Added cities and staduims relevant to these added countries as well.
Updated retirement stories, era relevant.
5 save slots.
Various Bug Fixes.
Added a number of achievements post retirement, tiered into gold, silver, bronze and some unique achievements.
- Autoload overwriting saved slots
- Autoloading old saved game instead of current game
- Rankings retuned. Beating a top 10 fighter should gain more ranks
- Slightly less likely to see the same opponents
- Opponents fighting twice in a same month
- Various other minor fixes.
Current Release
Build 24760359
Uploaded Aug 19, 2026
System Requirements
How to Install
Sim Heavyweight Boxing Champion.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
Needed when extracting (WinRAR / 7-Zip) — not a site login.
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