A quick guide for you guys if you struggle with HTA - Rise of clans, a classic game in many people's eyes, including me i had very fond memories of this game and it's predecessor.
•1080p Resolution and better fov (for that res)
Open config.cfg found in game's data folder.
r_desiredHeight="1080"
r_desiredWidth="1920"
r_height="1080"
r_width="1920"
fov="100.00"
•Making the game look better.
-Just open the .exe in Nvdia control panel or equivalent for ATI and modify the values.
-You will notice increased loading times


Result = No jagged edges and a better looking game

•4k Resolution :
same as above modify these values in the .cfg file
(if you have a very high end GPU you can probably go 8k or more with DSR values)
r_desiredHeight="2160"
r_desiredWidth="3840"
r_height="2160"
r_width="3840"

EDIT: And some other tweaks that might or might not make a difference (not tested them much,at least it won't crash the game)
detShadowTexSz="4096"
g_shadowMapSize="4096"
lgtShadowTexSz="4096"
g_grassDrawDist="800.00"
g_impostorFeatDist="250.0"
g_impostorThreshold="300"
r_bpp="32"
r_compressedTextures="0"
r_d3dVersion="11"
r_depthBias="8"
r_depthBpp="32"
r_maxLights="32"
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