Sound Change Game

[mèþru]

Gejaehl Hlu tutsingnae [tut̚s̺iŋnæ] ⟶ Th`ajov`i totligna /tu.tɬiŋ.nä/ [tu.tɬeŋ.nä]
Gejaehl Hlu ikueysae [ikɯjs̺æ] ⟶ Th`ajov` ikiw`sa /i.ki.wʕ̞.sä/ [i.kɨ.wɑ.sä]
Gejaehl Hlu kiso [kis̺o] ⟶ Th`ajov`i kij`so` /ki.jʕ̞.suʕ̞/ [te.jɑ.soʔh]
Gejaehl Hlu toeyoesko [tɤjɤs̺ko] ⟶ Th`ajov`i tiwask`o` /ti.wäs.kʕ̞uʕ̞/ [te.wäs.kʕ̞oʔh]

[Travis B.]

Th`ajov`i totligna /tu.tɬiŋ.nä/ [tu.tɬeŋ.nä] > Proto-rəgyam tusinae [tʊsɪnǣ]
Th`ajov` ikiw`sa /i.ki.wʕ̞.sä/ [i.kɨ.wɑ.sä] > Proto-rəgyam ikiuwasae [ɪkɨwɐsǣ]
Th`ajov`i kij`so` /ki.jʕ̞.suʕ̞/ [te.jɑ.soʔh] > Proto-rəgyam tiyasou [tɪjɐsō]
Th`ajov`i tiwask`o` /ti.wäs.kʕ̞uʕ̞/ [te.wäs.kʕ̞oʔh] > Proto-rəgyam tiwasiukou [tɪwɐsɨkō]

[mèþru]

Correction:
Gejaehl Hlu kiso [kis̺o] ⟶ ki``so` /ki.ʕ̞ʕ̞.suʕ̞/ [ke.hɑ.soʔh]

I'm guessing that's Proto-rəgyam kihasou [kɪhɐsō]...
Proto-rəgyam tusinae [tʊsɪnǣ] ⟶ Classical Latin TVSINA /ˈtʊ.sɪ.nä/
Proto-rəgyam ikiuwasae [ɪkɨwɐsǣ] ⟶ Classical Latin ICEVASA /ɪˈkeu̯.ä.sä/
Proto-rəgyam [kihasou [kɪhɐsō] ⟶ Classical Latin CIHASÓ /ˈkɪ.hä.soː/
Proto-rəgyam tiwasiukou [tɪwɐsɨkō] ⟶ Classical Latin TIVASꟾCÓ /tɪ.wäˈsiː.koː/

[Nortaneous]

Proto-rəgyam tusinae [tʊsɪnǣ] Gyitha tosimne [toĩɲæ]
Proto-rəgyam ikiuwasae [ɪkɨwɐsǣ] Gyitha ikuase [iɤæ]
Proto-rəgyam tiyasou [tɪjɐsō] Gyitha tiuso [ceɾo]
Proto-rəgyam tiwasiukou [tɪwɐsɨkō] Gyitha tuasoko [tɤɾoo]

Classical Latin TUSINA /ˈtʊ.sɪ.nä/ Gyitha tosimna [toĩna]
Classical Latin ICEUASA /ɪˈkeu̯.ä.sä/ Gyitha ikeoasa [igæoaɾa]
Classical Latin CIHASÓ /ˈkɪ.hä.soː/ Gyitha kihasoo [kiaɾoo]
Classical Latin TIVASꟾCÓ /tɪ.wäˈsiː.koː/ Gyitha tuasiikoo [tɤiioo]

[mèþru]

Gyitha tosimne [toĩɲæ] ⟶ Rumaikan /to̞j.nä/ ⟶ Fijian toina /ˈtoi̯.nä/
Gyitha ikuase [iɤæ] ⟶ Rumaikan /i.ɰä/ ⟶ Fijian iwa /ˈi.ɰä/
Gyitha tiuso [ceɾo] ⟶ Rumaikan /c̠e̞.ɾo̞/ ⟶ Fijian kiro /ˈkiː.rɔ/
Gyitha tuasoko [tɤɾoo] ⟶ Rumaikan /te̞.ɾo̞/ ⟶ Fijian tero /ˈteː.rɔ/

[communistplot]

Fijian toina /ˈtoi̯.nä/ >> Yagalic toyna /toj.nɑ/ >> Madai tön /tøn/
Fijian iwa /ˈi.ɰä/ >> Yagalic ïwa /ɯ.ɰɑ/ >> Madai ïv /ɯʊ̯/
Fijian kiro /ˈkiː.rɔ/ >> Yagalic kīrä /kiː.ɾæ/ >> Madai tīla /ˈtiː.la/
Fijian tero /ˈteː.rɔ/ >> Yagalic tirä /ti.ɾæ/ >> Madai tila /ˈti.la/

[Nortaneous]

Madai tön /tøn/ Kannow t'èneja/tènot' [tʷʼeˈneʝa]/[ˈtʷʼenətʼ]
Madai ïv /ɯʊ̯/ Kannow ygun/ygut' [ˈʔɨu̯ɣʷun]/[ˈʔɨu̯ɣʷutʼ]
Madai tīla /ˈtiː.la/ Kannow t'yylasʼ/t'yylás [ˈtʼɨːɮatsʼ]/[ˈtʼɨːɮao̯sʷ]
Madai tila /ˈti.la/ Kannow t'ylan/t'ylat' [ˈtʼɨɮan]/[ˈtʼɨɮatʼ]

(definite/indefinite)

[mèþru]

Kannow tènot' [ˈtʷʼenətʼ] ⟶ Proto-Northern Iroquoian /ʔtwenẽʔt/ ⟶ Na'vi /tʼu.ɛ.nɛʔ.to/
Kannow ygut' [ˈʔɨu̯ɣʷutʼ] ⟶ Proto-Northern Iroquoian /ʔiwuːʔt/ ⟶ Na'vi /ʔi.wuʔ.to/
Kannow t'yylás [ˈtʼɨːɮao̯sʷ] ⟶ Proto-Northern Iroquoian /ʔtisäːs/ ⟶ Na'vi /tʼi.sæ.so/
Kannow t'ylat' [ˈtʼɨɮatʼ] ⟶ Proto-Northern Iroquoian /ʔtisäʔt/ ⟶ Na'vi /tʼi.sæʔ.to/

[communistplot]

Na'vi /tʼu.ɛ.nɛʔ.to/ ⟶ Yagalian tünättö /ty.næ.tːø/ ⟶ Madai tüntö /ˈtyn.tø/
Na'vi /ʔi.wuʔ.to/ ⟶ Yagalian kiwüttö /ki.wy.tːø/ ⟶ Madai kivütö /ki.ˈβy.tø/
Na'vi /tʼi.sæ.so/ ⟶ Yagalian tisäsö /ti.sæ.sø/ ⟶ Madai tisö /ˈti.sø/
Na'vi /tʼi.sæʔ.to/ ⟶ Yagalian tisättö /ti.sæ.tːø/ ⟶ Madai tistö /ˈtis.tø/

[Nortaneous]

Madai tüntö /ˈtyn.tø/ Bor Hlu twidwae [tɥiⁿdɥɛ]
Madai kivütö /ki.ˈβy.tø/ Bor Hlu kiḅwitwae [kiɓɥitɥɛ]
Madai tisö /ˈti.sø/ Bor Hlu tiswae [tisɥɛ]
Madai tistö /ˈtis.tø/ Bor Hlu tihltwae [tiɬtɥɛ]

[Travis B.]

Bor Hlu twidwae [tɥiⁿdɥɛ] > Proto-rəgyam tiniudei [tinɨdē]
Bor Hlu kiḅwitwae [kiɓɥitɥɛ] > Proto-rəgyam kib'itei [kiɓɪtē]
Bor Hlu tiswae [tisɥɛ] > Proto-rəgyam tisei [tɪsē]
Bor Hlu tihltwae [tiɬtɥɛ] > Proto-rəgyam tisiutei [tisɨtē]

[xroox]

Proto-rəgyam tiniudei [tinɨdē] > Deinau ·dinidii > Ndenö dinde [ˈdində]
Proto-rəgyam kib'itei [kiɓɪtē] > Deinau ·kibidii >Ndenö kidde [ˈkidə]
Proto-rəgyam tisei [tɪsē] > Deinau ·disii > Ndenö dire [ˈdiɹə]
Proto-rəgyam tisiutei [tisɨtē] > Deinau ·disidii > Ndenö dirde [ˈdiːdə]

[Travis B.]

Ndenö dinde [ˈdində] > Proto-Laqar dindæ > Old Laqar dində > Early Middle Laqar dędə [ˈdɛ̃də]
Ndenö kidde [ˈkidə] > Proto-Laqar kʼidæ > Old Laqar č'idə > Early Middle Laqar č'idə [ˈtʂʼidə]
Ndenö dire [ˈdiɹə] > Proto-Laqar diɾæ > Old Laqar dirə > Early Middle Laqar dirə [ˈdiɾə]
Ndenö dirde [ˈdiːdə] > Proto-Laqar diːdæ > Old Laqar didə > Early Middle Laqar didə [ˈdidə]

[Nortaneous]

Early Middle Laqar dędə [ˈdɛ̃də] Duhai dvt5 [dɤʔ54]
Early Middle Laqar č'idə [ˈtʂʼidə] Duhai syt5 [sz̩ʔ54]
Early Middle Laqar dirə [ˈdiɾə] Duhai di6dv3 [dʑi34ɺɤ11]
Early Middle Laqar didə [ˈdidə] Duhai dit5 [dʑiʔ54]

it is probably time for new words

Mandarin Zhāng Xiànzhōng [tʂɑŋ55 ɕiɛn51tʂʊŋ55] Zzyxwqnp Trqnt Xenxtrunt [tʂɒ̃45 ɕẽ31tʂũ45]
Tangut 1phon2 2be4 2lheq4 2leq3 [pʰɔ̃33 ⁿbie24 ɬieʔ24 leˠʔ24] Zzyxwqnp Pqn Bbet Xet Lzt [pɒ̃33 ⁿbe45 ɕe55 lə55]
English Donald Trump Mandarin Tángnàdé Tèlǎngpǔ [tʰɑŋ35na51tɯ35 tʰɯ51lɑŋ21pʰu214] Zzyxwqnp Tqntnaxtzt Tzxnqpfu [tɒ̃45næ̃31tə45 tə42nɒ̃11fu33]
English Donald Trump Zzyxwqnp Dqnzpzyp Trznxpvp [dɒ33nə̃11dz̩11 tʂə̃31pv̩11]

[Travis B.]

Zzyxwqnp Trqnt Xenxtrunt [tʂɒ̃45 ɕẽ31tʂũ45] > Proto-rəgyam Thóng Sithúng [tʰɔ́ŋ sɪtʰúŋ]
Zzyxwqnp Pqn Bbet Xet Lzt [pɒ̃33 ⁿbe45 ɕe55 lə55] > Proto-rəgyam Pong Bé Sé Léu [pɔ̄ŋ bé sé lɘ́]
Zzyxwqnp Tqntnaxtzt Tzxnqpfu [tɒ̃45næ̃31tə45 tə42nɒ̃11fu33] > Proto-rəgyam Tanatéu Tiunahu [tanɐtɘ́ tɨnɐhū]
Zzyxwqnp Dqnzpzyp Trznxpvp [dɒ33nə̃11dz̩11 tʂə̃31pv̩11] > Proto-rəgyam Daniudì Thiupù [danɨdì tʰɨpù]

[Nortaneous]

Proto-rəgyam Thóng Sithúng [tʰɔ́ŋ sɪtʰúŋ] Duhai Tauxgl Syztuxgl [tau53kv̩12 sz̩45tu53kv̩12]
Proto-rəgyam Pong Bé Sé Léu [pɔ̄ŋ bé sé lɘ́] Duhai Pauml Bex Sex Dex [pau33m̩12be53ɕe53ɾe53]
Proto-rəgyam Tanatéu Tiunahu [tanɐtɘ́ tɨnɐhū] Duhai Tajnaltvx Tyjnalfu [ta31na12tə53 tsz̩31na12ɸu33]
Proto-rəgyam Daniudì Thiupù [danɨdì tʰɨpù] Duhai Danldil Tylful [da33n̩11dʑi12 tsz̩11ɸu12]

(Prestige-dialect /kv̩/ corresponds to coastal-dialect /ŋ̩/ < Proto-Duic *ŋɨ. Coastal is conservative; prestige dialect had chain shift of ŋ > k > ʔ.)

[opipik]

Duhai Tauxgl Syztuxgl [tau53kv̩12 sz̩45tu53kv̩12] -> Proto-Kangain [tɒup situp] -> Southern Mutikw Taev Sitov [taəβ sitoβ]
Duhai Pauml Bex Sex Dex [pau33m̩12be53ɕe53ɾe53] -> Proto-Kangain [pɒumbesere] -> Southern Mutikw Vaem He Se Se [vaəmhəsəsə]
Duhai Tajnaltvx Tyjnalfu [ta31na12tə53 tsz̩31na12ɸu33] ->Proto-Kangain [tanat tinavu] -> Southern Mutikw Tnet Tinew [tnət tinəw]
Duhai Danldil Tylful [da33n̩11dʑi12 tsz̩11ɸu12] -> Proto-Kangain [dandi tivu] -> Southern Mutikw ʔEt Tiw [ʡət tiw]

[Travis B.]

Southern Mutikw Taev Sitov [taəβ sitoβ] > Proto-Laqar /ˈtʰæw ˈsitʰɒw/ > Old Laqar To Seto > Early Middle Laqar To Seto [ˈtʰo ˈsetʰo]
Southern Mutikw Vaem He Se Se [vaəmhəsəsə] > Proto-Laqar /wæmˈhæsæsæ/ > Old Laqar Wəmhassə > Early Middle Laqar Wąmassə [ˈwãmasːə]
Southern Mutikw Tnet Tinew [tnət tinəw] > Proto-Laqar /ˈtʰænætʰ ˈtʰinæw/ > Old Laqar Tənat Teno > Early Middle Laqar Tənat Teno [ˈtʰənatʰ ˈtʰeno]
Southern Mutikw ʔEt Tiw [ʡət tiw] > Proto-Laqar /ˈqʼætʰ ˈtʰiw/ > Old Laqar K'át Tü > Early Middle Laqar Q'at Ti [ˈqʼatʰ ˈtʰi]

[opipik]

Early Middle Laqar To Seto [ˈtʰo ˈsetʰo] -> Proto-Kangain [to seto] -> Eastern Mona thi [θi]
Early Middle Laqar Wąmassə [ˈwãmasːə] -> Proto-Kangain [wɒ:masɒ] -> Eastern Mona ũamthõ [jamθɒ]
Early Middle Laqar Tənat Teno [ˈtʰənatʰ ˈtʰeno] -> Proto-Kangain [tɒnat teno] -> Eastern Mona oon ian [oːn jæn]
Early Middle Laqar Q'at Ti [ˈqʼatʰ ˈtʰi] -> Proto-Kangain [qat ti] -> Eastern Mona ees [eːs]

[Travis B.]

Does your language elide or lenite all stops?

[opipik]

Does your language elide or lenite all stops?

At least /t/ and /q/ were elided.

[mèþru]

Eastern Mona thi [θi] ⟶ unpacking this [tə.hi]
Eastern Mona ũamthõ [jamθɒ] ⟶ unpacking this [i.ɹap.nət.həʊ̯]
Eastern Mona oon ian [oːn jæn] ⟶ unpacking this [won.i.ɹa.en]
Eastern Mona ees [eːs][/quote] ⟶ unpacking this [e.is]

[Travis B.]

Eliding or assimilating everything ruins this game. Of course, the opposite, tacking the same inflectional endings or clitics onto words each iteration, over and over, is also tiresome (something that I am admittedly guilty of).

[Nortaneous]

ban projecting forward from protolangs, imo

Dzongkha vbrug-rgyal khab [ɖúkɟǽ kʰáp] Zzyxwqnp Drukzpje Kapvp [ɖu33 kə11 dʑe33 ka33 pʮ11]
Tangut 1kiq2 1dyq4 1paq4 1tiq4 2wyr4 [kɪ̙̄ ndiə̙̄ piā̙ tī̙ wiɚ̌] Zzyxwqnp Kyjjapqchibyt [kʅ33 ndʑa33 pɒ33 tɕi33 bɿ45]
English functional programming [ˈfəŋkʃn̩l̩ ˈpɹəwˌgreəmɨŋ] Zzyxwqnp fzntkzpshypnyxlp pvplotdraxmip [fə̃45 kə11 ʂʅ11 ɲɲ̩42 ll̩11 pv̩11 lo45 ɖa42 mĩ11]
Mandarin Wáng Yángmíng [wɑŋ35 jɑŋ35miŋ35] Zzyxwqnp Wqnt Yqntmit [wɒ̃45 yɒ̃45 mĩ55]

alt orthography:
Ḍwukèdye Kapù
Kinyapatibú
fénkèṣìnîlì pùlwéḍâmìn
Wán Ywánmyí