Q:

Running simulation in omnet++ with standalone file

I want to run my simulation on a machine that does not have omnet++. Is there any way that I can do that?
Is it possible to build my project in a way to be self sufficient? 

A:

You can avoid dependencies to native OMNeT++ libraries (e.g. liboppenvird.so, liboppsimd.so etc) by compiling your OMNeT++ with static libraries option. In order to do that open configure.user from main OMNeT++ directory and set:
SHARED_LIBS=no
Then rebuild your OMNeT++ (make clean, ./configure, make). Next rebuild your project.
Example for tictoc:
cd samples/tictoc
opp_makemake -f --deep
make clean && make

Then ldd tictoc will show:
user@ubuntu:/opt/omnetpp-4.6/samples/tictoc$ ldd tictoc
    linux-vdso.so.1 =>  (0x00007ffe4e1f6000)
    libtk8.6.so => /usr/lib/x86_64-linux-gnu/libtk8.6.so (0x00007fcf868d7000)
    libtcl8.6.so => /usr/lib/x86_64-linux-gnu/libtcl8.6.so (0x00007fcf8653a000)
    libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007fcf8631f000)
    libxml2.so.2 => /usr/lib/x86_64-linux-gnu/libxml2.so.2 (0x00007fcf85f56000)
    libmpi_cxx.so.1 => /usr/lib/libmpi_cxx.so.1 (0x00007fcf85d3a000)
    libmpi.so.1 => /usr/lib/libmpi.so.1 (0x00007fcf859b1000)
    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fcf857ad000)
    libhwloc.so.5 => /usr/lib/x86_64-linux-gnu/libhwloc.so.5 (0x00007fcf85568000)
    libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007fcf85259000)
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fcf84f51000)
    libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007fcf84d3b000)
    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fcf84b1d000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fcf84753000)
    libXft.so.2 => /usr/lib/x86_64-linux-gnu/libXft.so.2 (0x00007fcf8453e000)
    libfontconfig.so.1 => /usr/lib/x86_64-linux-gnu/libfontconfig.so.1 (0x00007fcf84300000)
    libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007fcf83fc7000)
    libXss.so.1 => /usr/lib/x86_64-linux-gnu/libXss.so.1 (0x00007fcf83dc3000)
    libicuuc.so.52 => /usr/lib/x86_64-linux-gnu/libicuuc.so.52 (0x00007fcf83a45000)
    libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007fcf83842000)
    libltdl.so.7 => /usr/lib/x86_64-linux-gnu/libltdl.so.7 (0x00007fcf83638000)
    /lib64/ld-linux-x86-64.so.2 (0x00007fcf86c2b000)
    libnuma.so.1 => /usr/lib/x86_64-linux-gnu/libnuma.so.1 (0x00007fcf8342d000)
    libfreetype.so.6 => /usr/lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007fcf83185000)
    libXrender.so.1 => /usr/lib/x86_64-linux-gnu/libXrender.so.1 (0x00007fcf82f7b000)
    libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007fcf82d52000)
    libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007fcf82b33000)
    libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007fcf82921000)
    libicudata.so.52 => /usr/lib/x86_64-linux-gnu/libicudata.so.52 (0x00007fcf810b4000)
    libpng12.so.0 => /lib/x86_64-linux-gnu/libpng12.so.0 (0x00007fcf80e8e000)
    libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007fcf80c8a000)
    libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007fcf80a84000)

Moreover, if you do not need graphical interface, you can build your project only for command line mode. It decreases number of dependencies. In order to do that use the command:
opp_makemake -f --deep -u Cmdenv
(or set it using Project properties in OMNeT++). After rebuilding tictoc there is no dependencies to X11 libraries:
user@ubuntu:/opt/omnetpp-4.6/samples/tictoc$ ldd tictoc
    linux-vdso.so.1 =>  (0x00007ffd82197000)
    libxml2.so.2 => /usr/lib/x86_64-linux-gnu/libxml2.so.2 (0x00007f452e838000)
    libmpi_cxx.so.1 => /usr/lib/libmpi_cxx.so.1 (0x00007f452e61c000)
    libmpi.so.1 => /usr/lib/libmpi.so.1 (0x00007f452e293000)
    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f452e08f000)
    libhwloc.so.5 => /usr/lib/x86_64-linux-gnu/libhwloc.so.5 (0x00007f452de4a000)
    libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f452db3b000)
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f452d833000)
    libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f452d61d000)
    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f452d3ff000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f452d035000)
    libicuuc.so.52 => /usr/lib/x86_64-linux-gnu/libicuuc.so.52 (0x00007f452ccb7000)
    libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f452ca9c000)
    libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007f452c899000)
    libltdl.so.7 => /usr/lib/x86_64-linux-gnu/libltdl.so.7 (0x00007f452c68f000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f452ec01000)
    libnuma.so.1 => /usr/lib/x86_64-linux-gnu/libnuma.so.1 (0x00007f452c484000)
    libicudata.so.52 => /usr/lib/x86_64-linux-gnu/libicudata.so.52 (0x00007f452ac17000)

