Icy Tower 1.5 and 1.5.1

This is the end of the official Windows line. icy.pl’s own write-up of 1.5 is dated 31 January 2011 and lists a 3.69 MB installer, icytower15_install.exe. The German table then records a small follow-up, 1.5.1, on 7 December 2011. Softpedia’s listing uses 1.5.1 as well. FileHippo’s title bar says 1.5.1.1. I print all three strings. I will not invent a fourth.

The 1.5.2 search

A precise web search for the quoted string Icy Tower 1.5.2 produced no release note, no changelog, and no dated file. No official 1.5.2 release was found in the sources checked on 12 Nov 2026. If a button says 1.5.2, ask which of the three labels above the file really is. The download page keeps an anchor here so that habit still lands on an answer.

What January 2011 actually changed

The Polish 1.5 article is specific. Audio was replaced with music that had lived in the Facebook beta. The menu arrangement of Man of Constant Sorrow was removed. Harold’s shout changed from Łypydudu to Łottudu. Super-fast replay scrolling was slowed. A fourth default character arrived: Wild Wendy, drawn with a saloon theme. Jungle Jane is already in the 1.5 sound archive beside Disco Dave and Harold, so the cast people name from this era is those four, not the three defaults described for the classic game.

Replay files and profiles stayed compatible with 1.4. The header family is ITR140, not the ITR130 files that 1.3.1 wrote. That single fact decides whether an old replay folder opens. Mods on this build tend to replace data.dat or sfx15.dat rather than the September 2005 layout. MyAbandonware hosts both a 1.5 and a 1.5.1 package; pick 1.5.1 when the page offers both and you only want the newest classic executable.

Windows today

Nothing on icy.pl or the German table certifies Windows 10 or 11. People still launch the 2011 executable with compatibility settings or inside a virtual machine. That is a community practice, not a publisher system requirement. The 2026 Steam release is the one with a current system table, and it does not read these 1.5 save files. Soundtrack notes for the removed menu song live on the music page, including the YouTube upload of the old menu cue.