Here's a whole bunch of various
Dune II remakes (in no particular order):
Arrakis by Stefan Hendriks: a
Dune II-inspired game with custom graphics. The site also features various
Dune II-related downloads, as well as the older version of
Dune II The Maker (see below).
Dune IV by Amonit: a
Dune II recreation with a Starcraft-like interface and a variety of missions resembling
Dune 2000.
Redux 3 by Justin Anstead (neonext): a multipurpose RTS engine capable of running
Dune II,
Command & Conquer and
Red Alert-like games. The older versions of this project,
Redux 2 and
Dune 2 Redux, are also available.
Charge by Ferenc van den Ham: a
Dune II "imitation" (as the author himself puts it) written in Java. Single player.
Dune II The Maker by Stefan Hendriks: a
Dune II remake with updated high-resolution graphics, currently aimed at recreating
Dune II as close to the original as possible.
Dune Legacy by TonyD
et al.: this project's main goal is to make
Dune II playable under high resolutions and a
Command & Conquer-styled interface. Dune Legacy requires the original
Dune II game files to run.
Dune 2: The Golden Path (previously known as
Dune 2: The Sleeper Has Awakened) by Drackbolt: a
Dune II remake with various improvements, originally focused on multiplayer but now also featuring the singleplayer aspect as well.
OpenDune by Xaroth, TrueBrain
et al.: to quote the
official site, this is "an open source re-creation" of
Dune II that "attempts to re-create the original game and apply modern technology to it to allow it to be run natively on most operating systems".
OD2 by Segra: a project aimed at accurate
engine recreation of
Dune II, based on results of disassembling and analysis of the original EXE of the game.