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18xx Rules Difference List
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This is a much-argued point, so references are included. A general principle of all 18xx games is that an upgrade may never destroy existing track. This is to be assumed in everything written below.
There are three common forms of the rule on this:
1761 Permissive.
1800 Semi-restrictive.
1812 Restrictive for track tiles, for city upgrades, some track (old or
new) must be part of a route for the company.
1817 Permissive.
1822 Permissive.
1822CA Permissive.
1824 Permissive.
1824 v2 Permissive.
1825 Restrictive. In addition, a city may only be upgraded if reachable from one of
the laying company's station-markers by 'one of the Company's existing Trains' (rule
4.3.2). Two '2' trains can be double-headed to act as a single '3' train for this purpose.
(rule 4.5.5). {Following this to the letter raises issues when upgrading some station
tiles. For example, London has no new track, while the Birmingham/Glasgow/Manchester tiles
have new track for only one station, so a company could only upgrade it if it was using
this track. Having talked with Francis Tresham it was clearly not the intention to create
such a restriction, so you can consider that his intention was for semi-restrictive
upgrades. However, the requirement to be able to reach a station with one of the company's
trains still exists.}
1825 with survey parties As for 1825 without them (rule 6.6).
1826 Semi-restrictive.
1827 Jr. Permissive (personal communication to Nick Wedd from Vellani).
1829 The upgrading company must have moved a Survey Party, and the upgraded hex
must be free of Survey Parties (rule 43).
1829 Mainline Restrictive. In addition, a city may only be upgraded if
reachable from one of the laying company's station-markers by one of the company's
existing trains.
1830 v1 Rule 18.1 says permissive. However it is possible to read the restrictions
of rule 18.0 as applying to rule 18.1, making the result restrictive. A clarification from
Avalon Hill says that the 1830 rule is semi-restrictive. Their own computer version is
permissive.
1830 v2 Permissive.
1830 v3 Permissive.
1830 Cardgame, Railroad Barons Not applicable.
1830BC, 2038 Not applicable.
1830Lummerland Permissive.
1830NL Permissive.
1831 Permissive (rule 5.2.6.5).
1832 Semi-restrictive.
1834 As for 1830, except that in the Green phase, a company may pay 50 to
place a green tile directly on the map, skipping the normal yellow tile placement.
1835 Restrictive (German rule VII.1). But the author's intention was permissive,
and another German ruleset exists. An English translation says permissive (rules
3.1.12-3.1.20).
1837 According to the printed rules, restrictive (rule VI.1). This means that
certain tiles can never be laid, and is a mistake. The designer Leonhard Orgler has stated
(personal communication to Steve Thomas) that it should be semi-restrictive.
1837SX Semi-restrictive, but there is no requirement for a city value to
change.
1838 Rheinland Semi-restrictive.
1841 The original rules were restrictive (rules 4.1.1, 4.1.2). As for 1837, a
subsequent clarification from the author states that it should be semi-restrictive.
1842 Restrictive (rule 6.2.3). (Note also rule 6.2.2 restricting upgrades to both
coastal and inland cities.)
1844 Permissive (rule XV, bullet-point 7).
1846 Semi-restrictive.
1847 As for 1835 - presumably restrictive.
1847AE Semi-restrictive.
1848 Permissive.
1849v1&3 Restrictive (rule 4.1).
1849v4 Semi-restrictive (rule 4.1).
1850 Semi-restrictive, except that the value of a town or city need not
change.
1851 Semi-restrictive.
1853, 1853 v2 Permissive; but upgrades only allowed on the company's 'patch'. A
brown tile next to a grey tile may not be upgraded (i.e. there can never be two grey tiles
adjacent to each other).
1854 Semi-restrictive (rule 5.4).
1856 Semi-restrictive.
1857 As for 1830.
1858 Semi-restrictive (rule 9.3).
1859 As for 1830.
1860 Semi-restrictive. Furthermore, the tile being upgraded must be
reachable from one of the laying company's station-markers by one the company's existing
trains. Unlike 1825, this additional restriction is not limited to station tiles.
1861 Restrictive for track tiles, for city upgrades, some track (old or
new) must be part of a route for the company.
1862 Permissive.
1862EA, 1862EA v2 Semi-restrictive (rule.7.6.3).
1865 Sardinia Restrictive (page 22).
1867 Restrictive for track tiles, for city upgrades, some track (old or
new) must be part of a route for the company.
1868 As for 1830.
1869 The Golden Spike Semi-restrictive.
1869 USA West Some of the track on the original tile must be reachable
from one of the laying company's station markers by an arbitrarily large train.
1870 Semi-restrictive (page 20).
1873 Super-restrictive. After being laid, all new track on the tile must
be reachable from any of the laying company's station markers by an arbitrarily large
train.
1876 v2 Permissive ('.. use the 1830 rulebook').
1876-30 Permissive.
1876-30 v2 Permissive.
1876-35 Permissive.
1876-35 v2 Semi-restrictive.
1879 As for 1830.
1880 Permissive.
1881 Restrictive (rule 7.2.1.2).
1883 Semi-restrictive (rule 6.4.2).
1889 Semi-restrictive in version 1.0a of the rules. Version 1.0c
downloaded from Deep Thought Games is also semi-restrictive, but copies of this version
exist where the ruling is permissive.
1891 Semi-restrictive.
1893 Semi-restrictive.
1895 Permissive.
1898 Permissive (final sentence of section 'Lay or Upgrade Track').
1899 Permissive.
18?? Semi-restrictive (page 20 of the 1870 rules).
18Africa Restrictive.
18AL A clarification dated 25th June 1998 said restrictive; a later one said
semi-restrictive. John David Galt confirmed (28th January 2003) '18AL/GA are actually
semi-restrictive'.
18Ardennes Semi-restrictive.
18BL Restrictive.
18C2C Semi-restrictive (last but one paragraph of section 4.7.1).
18Chesapeake Semi-restrictive.
18CLE Semi-restrictive (rule 4.1). In addition, a company may only
upgrade a station tile from green to brown if it has a token on that tile.
18CZ Permissive (bullet point 8 of section VIII.5).
18Dixie Semi-restrictive.
18EC Semi-restrictive.
18EU Permissive.
18EZ All Levels Permissive.
18FL Semi-restrictive.
18GA A clarification dated 25th June 1998 said restrictive; a later one said
semi-restrictive. John David Galt confirmed (28th January 2003) '18AL/GA are actually
semi-restrictive'.
18GA v2 Semi-restrictive.
18GB Restrictive.
18GL Semi-restrictive.
18GM Semi-restrictive.
18IN Restrictive.
18Ireland Semi-restrictive.
18JP-T Permissive.
18Kaas As for 1830.
18Lilliput Presumed restrictive, although it does not actually say so,
simply requiring that all track segments be maintained in an upgrade. There is a general
statement regarding tile laying stating that tiles laid must be an extension of track
connected to a station marker of the company, so I went for restrictive on the basis that
the extension due to the upgrade must therefore constitute the newly laid track for that
definition.
18Mex Semi-restrictive, but there is no requirement for a city value to
change.
18MS Semi-restrictive.
18MW Permissive.
18Neb Semi-restrictive.
18NK Semi-restrictive.
18NL Permissive.
18NW Restrictive.
18NY Permissive.
18NYC Restrictive.
18OE Semi-restrictive.
18PA Semi-restrictive.
18Rhl Rhineland Semi-restrictive.
18Ruhr Permissive.
18SA Permissive.
18Scan Semi-restrictive.
18SS Semi-restrictive.
18SY As for 1830.
18TN Semi-restrictive.
18US Semi-restrictive.
18USA Permissive.
18VA Semi-restrictive.
18West Semi-restrictive.
Crisis Permissive.
Poseidon There are no tiles in the game.
Steam Over Holland Permissive.
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© Keith Thomasson January 5th 2023 |