SIAMOIS is a project devoted to ground-based asteroseismology,involving a small collector and an instrument to be installed at the Dome C Concordia station in Antarctica. After the space project CoRoT, SIAMOIS willprovide unique Doppler information on G and K type bright stars on the main sequence. Spectrometric observations with SIAMOIS will be able to detect oscillation modes that cannot beanalyzed in photometry, and will be less affected by stellaractivity noise.The SIAMOIS concept is based on Fourier Transform interferometry.Such a principle leads to a small instrument designed anddeveloped for the harsh conditions in Antarctica. The instrumentwill be fully automatic, with no moving parts, and a very simpleinitial set up at Dome C.Dome C appears to be the ideal place for ground-basedasteroseismic observations. The unequalled weather conditionsyield a duty cycle as high as 90% over 3 months, as was observedduring the 2006 wintering. This high duty cycle, a crucial pointfor asteroseismology, is comparable to the best space-basedobservations. Long time series (up to 3 months) will be possible,thanks to the long duration of the polar night.SIAMOIS can be seen as one of the very first astronomicalprojects to be conducted at Dome C. Its scientific programme will take full advantage of the unique quality of this site, and will constitute a necessary first step in preparation of future more ambitious programmes requiring more sophisticated instrumentation and larger collectors.