Comment 5 for bug 674783

aptitude search wesnoth:

p wesnoth - fantasy turn-based strategy game - complete suite (metapackage)
p wesnoth-1.8 - fantasy turn-based strategy game - complete suite (branch 1.8)
p wesnoth-1.8-aoi - "An Orcish Incursion" official campaign for Wesnoth (branch 1.8)
c wesnoth-1.8-core - fantasy turn-based strategy game (branch 1.8)
p wesnoth-1.8-data - data files for Wesnoth (branch 1.8)
p wesnoth-1.8-dbg - fantasy turn-based strategy game (debugging symbols for branch 1.8)
p wesnoth-1.8-did - "Descent Into Darkness" official campaign for Wesnoth (branch 1.8)
p wesnoth-1.8-dm - "Delfador's Memoirs" official campaign for Wesnoth (branch 1.8)
p wesnoth-1.8-ei - "The Eastern Invasion" official campaign for Wesnoth (branch 1.8)
p wesnoth-1.8-httt - "Heir to the Throne" official campaign for Wesnoth (branch 1.8)
p wesnoth-1.8-l - "Liberty" official campaign for Wesnoth (branch 1.8)
p wesnoth-1.8-low - "Legend of Wesmere" official campaign for Wesnoth (branch 1.8)
p wesnoth-1.8-music - music files for Wesnoth (branch 1.8)
p wesnoth-1.8-nr - "Northern Rebirth" official campaign for Wesnoth (branch 1.8)
p wesnoth-1.8-server - multiplayer network server for Wesnoth (branch 1.8)
p wesnoth-1.8-sof - "The Sceptre of Fire" official campaign for Wesnoth (branch 1.8)
p wesnoth-1.8-sotbe - "Son of the Black-Eye" official campaign for Wesnoth (branch 1.8)
p wesnoth-1.8-thot - "The Hammer of Thursagan" official campaign for Wesnoth (branch 1.8)
p wesnoth-1.8-tools - tools for campaign developers for Wesnoth (branch 1.8)
p wesnoth-1.8-trow - "The Rise of Wesnoth" official campaign for Wesnoth (branch 1.8)
p wesnoth-1.8-tsg - "The South Guard" official campaign for Wesnoth (branch 1.8)
p wesnoth-1.8-ttb - "A Tale of Two Brothers" official campaign for Wesnoth (branch 1.8)
p wesnoth-1.8-utbs - "Under the Burning Suns" official campaign for Wesnoth (branch 1.8)
p wesnoth-all - fantasy turn-based strategy game - complete suite (transitional package)
pB wesnoth-aoi - "An Orcish Incursion" official campaign for Wesnoth
pB wesnoth-core - fantasy turn-based strategy game (metapackage)
pi wesnoth-data - data files for Wesnoth
p wesnoth-dbg - fantasy turn-based strategy game (debugging symbols)
pB wesnoth-did - "Descent Into Darkness" official campaign for Wesnoth
p wesnoth-editor - map editor for Wesnoth (transitional package)
pB wesnoth-ei - "The Eastern Invasion" official campaign for Wesnoth
pB wesnoth-httt - "Heir to the Throne" official campaign for Wesnoth
pB wesnoth-l - "Liberty" official campaign for Wesnoth
pB wesnoth-low - "Legend of Wesmere" official campaign for Wesnoth
pB wesnoth-music - music files for Wesnoth (metapackage)
pB wesnoth-nr - "Northern Rebirth" official campaign for Wesnoth
p wesnoth-server - multiplayer network server for Wesnoth
pB wesnoth-sof - "The Sceptre of Fire" official campaign for Wesnoth
pB wesnoth-sotbe - "Son of the Black-Eye" official campaign for Wesnoth
pB wesnoth-thot - "The Hammer of Thursagan" official campaign for Wesnoth
p wesnoth-tools - tools for campaign developers for Wesnoth
pB wesnoth-trow - "The Rise of Wesnoth" official campaign for Wesnoth
pB wesnoth-tsg - "The South Guard" official campaign for Wesnoth
pB wesnoth-ttb - "A Tale of Two Brothers" official campaign for Wesnoth
pB wesnoth-utbs - "Under the Burning Suns" official campaign for Wesnoth

 aptitude show wesnoth

Package: wesnoth
State: not installed
Version: 1:1.8.5-1~lucid1
Priority: extra
Section: universe/games
Maintainer: Ubuntu Developers <email address hidden>
Uncompressed Size: 24.6k
Depends: wesnoth-1.8 (>= 1:1.8.5-1~lucid1), wesnoth-1.8-data (= 1:1.8.5-1~lucid1)
Description: fantasy turn-based strategy game - complete suite (metapackage)
 This metapackage pulls in the complete set of the latest stable version, most helpful if you
 always want to have all the official campaigns installed. If you only want to play over the
 network with other players or want to play only a few campaigns you just need to install the
 wesnoth-core package and the wanted campaign packages.

 Battle for control of villages, using variety of units which have advantages and disadvantages
 in different types of terrains and against different types of attacks. Units gain experience
 and advance levels, and are carried over from one scenario to the next in a campaign.
Homepage: http://wesnoth.org/

It doesn't appear from this that wesnoth-1.6 is available in Ubuntu's repositories.