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History & Culture · Famous wheels · 7 min

Bad Homburg and the Spa Casinos

Where the single zero was born, and why the spas had casinos at all.

Short answer

In the 1840s the German spa towns of Baden-Baden, Wiesbaden and Bad Homburg competed for wealthy visitors with casinos attached to their baths. Homburg won the roulette war by removing a zero. Prussia closed them all in 1872.

Homburg single zero
1843
German casinos closed
1872
Baden-Baden reopened
1933
Dostoevsky
Wiesbaden & Homburg, 1860s

Taking the waters

A 19th-century spa cure took weeks and attracted people with money and time. Towns competed on hotels, concerts and, from the 1820s, gaming rooms, licensed by small German states that needed the revenue. Baden-Baden’s Kurhaus and Wiesbaden’s Kurhaus ran roulette and trente-et-quarante for an international clientele; the French, whose own casinos were banned from 1837, came in numbers.

Homburg’s price cut

Bad Homburg was smaller and later. The Blanc brothers took the concession in 1841 and in 1843 advertised a wheel with a single zerowheelZeroThe single green pocket that no even-money, dozen or column bet covers; the source of the house edge. Also: single zero, 0.Read full →: the house edgemathHouse edgeThe share of each stake the casino keeps on average: 2.70% in European roulette.Read full → halved from 5.26% to 2.70%, and the advertising said so. Players moved. Within a decade Homburg was the fashionable spa and Blanc the richest man in Hesse. The rivals eventually matched the single zero, but by then the brand was made.

The 1843 price cut in context% of stake
French (la partage)
1.35%
European
2.70%
American (0, 00)
5.26%
Mini (13 pockets)
7.69%
Triple zero
7.69%
% of stake
03.857.69%
From two zeros to one: the only change in roulette’s history that improved the player’s odds, and it was a marketing decision.

Dostoevsky

Fyodor Dostoevsky lost heavily at Wiesbaden and Homburg in the 1860s, pawning his wife’s jewelry and writing The Gambler (1866) in 26 days to pay a publisher. The novel’s Roulettenburg is a composite of the spas, and its description of the tables, the systems and the compulsion is the best literary account of roulette ever written. He stopped gambling in 1871, a year before the tables closed.

spastatecasino yearsnotable
Baden-BadenBaden1824–1872; 1933–Kurhaus; Turgenev, Dostoevsky, Brahms
WiesbadenNassau, then Prussia1771–1872; 1949–Dostoevsky’s losses, 1865
Bad HomburgHesse-Homburg1841–1872; 1949–single zero, 1843; Blanc
Bad EmsNassau1720–1872royal visitors; later a telegram
Spa (Belgium)Belgium1763–the word “spa” itself; casino still runs

Dostoevsky’s Roulettenburg

1872

After unification, Prussia closed every casino in Germany; the last tables at Homburg and Baden-Baden shut on New Year’s Eve 1872. The Blanc operation had already moved to Monaco in 1863, taking the single zero with it. The German spas reopened their casinos in the 20th century (Baden-Baden in 1933, Homburg and Wiesbaden after the war) and run single-zero roulette to this day, with the French rules Homburg made standard.

Monte Carlo RouletteFrench Roulette

What the spas left behind

The single-zero wheel, the casino as part of a resort, and the idea that a casino competes on price. Also the literary roulette player: Dostoevsky’s Alexei, Turgenev’s observations, and a century of novels in which a spa casino is where a fortune or a reputation is lost. The arithmetic was always 2.70%; the spas supplied the setting.

Questions

Can you still play roulette at Baden-Baden?

Yes. The Kurhaus casino reopened in 1933 and runs single-zero roulette with French rules.

Was Homburg the first single-zero wheel?

The first to make it a policy and advertise it. Isolated single-zero wheels may have existed earlier.

Why did Prussia close the casinos?

Moral politics and a unified state that did not need small-principality gaming revenue.

Comic relief

The spas competed on everything. Homburg competed on the zero.

The spas competed on everything. Homburg competed on the zero.

Sources

  1. Schwartz, D. G. Roll the Bones: The History of Gambling. Gotham, 2006.
  2. Kavanagh, T. M. Dice, Cards, Wheels: A Different History of French Culture. University of Pennsylvania Press, 2005.
reviewed 2026-09-28model: European, single zeromethodology ↗sources ↗