of
Expeditions: Conquistador
for my MX-15 Debian Jessie 32 bit.

Yeah, that would be nice, but as stated on another thread, that won't happen. For Conquistador (but not Vikings, or likely any other successors), you can at least sort of do it yourself. Download unity3d 4.3.2f from the unity3d site (for Linux64). Then, from the unity3d archive:
copy LinuxPlayer to "Expeditions Conquistador.x86_64"
copy Data/Mono/libmono.so -> Expeditions Conquistador_Data/Mono
copy Data/Plugins/x86_64 -> Expeditions Conquistador_Data/Plugins
Then, just run "Expeditions Conquistador.x86_64" to start the game.

That's from my ancient notes on the subject, but it should still work (and at least my installation still works for me).

I might stop by later and provide a more exact link to the player if interested.