Tuomo Sipola, whom Teresa Nielsen Hayden describes as "a constructed-languages enthusiast," is making a "common fantasy tongue" — a kind of Esperanto for inhabitants of fantasy worlds.
1. Phonology
1.1 ConsonantsConsonants include plosives p, t, c and b, d, g and fricatives f, þ, s and h.
Laterals l ja r are very common as are nasals m and n of which n becomes velar before a velar consonant.
All consonants can be word-final.
Allowed consonant clusters at the beginning of a word are pr, tr, cr, dr and gr. Word-final and middle clusters (includeing the afore mentioned) are ld, lt, lþ, rd, rt, rþ, nd, nt, nþ, cs, nc ja ng.
1.2 Vowels
A, e, i, o ja u are vowels. A and e are the most common of them.
All the vowels except e may be word-final.
Allowed vowel clusters: ai, ei, oi, ui, au, ou, ia, ie and io.
1.3 Stress
Stress is initial but some speakers stress the penultimate.
Link
(via Making Light)