Sim: Heavyweight Boxing Champion

Sim: Heavyweight Boxing Champion is a career simulation spanning heavyweight boxing from 1880 to 2026 and beyond. You can begin as an unknown amateur or take control of one of 300 legendary heavyweights, then build a career through fights, rankings and title challenges. The game can generate more than 1,000 years of boxing history, with a division that evolves over time.

Boxing through the eras

Choose any starting year from the bare-knuckle era of the 1880s to the modern mega-fight era and beyond. The rules and setting change with the period: title fights move from 25 rounds to 20, 15 and then 12 as boxing modernises; 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 purses grow from thousands to tens of millions. Boxing news reports historic rule changes as they occur.

Sanctioning bodies also enter the sport in their historical order. There is one world title until 1963, when the WBC appears, followed by the IBF in 1983 and the WBO in 1988. Regional belts emerge over time as stepping stones: the British title in 1891, European in 1946, Oriental and Pacific in 1952, Commonwealth in 1954, North American in 1969, African in 1973 and Pan Asian in 1995. In the early eras, winning the single world title makes you champion by definition; later, you can pursue four world belts and become undisputed by holding them all at once.

Legends and fighters

Play as any of 300 great heavyweights, each with an authentic overall rating, fighting style, hometown and age at professional debut. You can relive a legend's career from its beginning or place them in another era to see how they fare against champions from a different time. Start them at 0-0 and shape their record yourself. For example, you can begin as Iron Mike Tyson at his 1984 debut or as Muhammad Ali, who turned professional at 18 in 1960 as the reigning Olympic gold medallist.

The roster includes more than 2,500 real heavyweights from 1880 to 2026 and beyond, including Ali, Tyson, Foreman, Frazier, Louis, Dempsey, Lennox Lewis, Holyfield, Holmes, Marciano, Klitschko, Fury, Usyk, Joshua, Wilder, Jack Johnson, Jim Jeffries and Bob Fitzsimmons. The fighters have ratings, styles, stances and nicknames, and you can meet them in their own eras or watch them emerge as young professionals in another decade. Their hometowns, amateur honours and signature moves are reflected in the game. Power and killer-instinct ratings distinguish punchers from slick boxers, while authentic nicknames appear in rankings, fight cards, results, news and profiles.

Build a career

Start as an amateur and work your way through a division of 500 unique boxers at any one time. Each has a record, style, strengths, weaknesses and personality. Choose your fighting style and stance, then climb from unranked contender towards the world championship. Eight fighting styles, multiple stances and adjustable difficulty give you different ways to approach a career.

Manage your opponents, training and condition across a career that can span more than a decade. Fighting someone far above your level risks a damaging loss, while choosing opponents who are too safe can hold back your rise through the rankings. Before each bout, pick one of six training camps, each with its own tradeoffs: Power, Speed, Defence, Cardio, Technical or Brawler. Keep track of your age, energy and physical condition, while purses grow from thousands to millions as your reputation rises. Your social media following can grow as you become a household name, or you can build a fanbase in the pre-internet eras.

Fights and rivalries

Fights unfold in real time with round-by-round commentary. Before each round, choose whether to box from range, apply pressure, fight on the inside or pursue a knockout, then adjust your plan as the bout develops. Stamina drains, cuts open, swelling develops and momentum shifts. Legends can use signature moves such as the Ali Shuffle and the Dempsey Roll, which are reflected in the commentary. Judges score independently, with split and majority decisions as well as controversial verdicts; fights can unfold differently each time.

Rivalries develop from close fights, disputed decisions, callouts and press conference confrontations. Rivals can challenge you in the media and demand rematches, leading to grudge matches watched across the division. Some rivalries can last an entire career.

A changing division

The division develops month by month. Fighters age, decline and retire; new professionals emerge from the amateur ranks; champions rise and fall; and mandatory challengers are ordered. Title fights can be scheduled, cancelled and rescheduled. The sons of legendary fighters can also enter the division carrying their fathers' surnames and a genetic edge.

The amateur scene runs alongside the professional division. The Olympic Games take place every four years and the World Amateur Championships every two years. Medal winners turn professional and enter the rankings; Olympic gold medallists arrive as elite-tier prospects, with appropriate floors for silver and bronze medallists. Their honours remain in their professional biographies, and they may become your rivals.

You can also follow the rest of the division: watch title fights with full commentary, track belt holders and rising contenders, and read news about major results, upsets and title changes. At the end of each year, awards recognise 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 writeup about the season.

Records and legacy

Every fighter has a BoxRec-style record with fight history, opponent records, methods of victory, venues and purses. Active fighters retain their full professional history without a fight cap. Your career page tracks knockouts, win streaks, earnings and title defences, while all-time, era and milestone leaderboards cover records such as most career wins, longest title reign, oldest first-time champion and fewest defeats at retirement.

When you retire, your record, titles, defences, earnings and achievements are preserved in the Hall of Fame. You can then create another fighter in the same universe and enter a division that has continued to evolve, with former contemporaries now retired icons. The game also tracks career earnings, social media growth and commercial progress.