Solana announced the 10 Stage of their testnet Tour de Sol, which will be held from 1 to 28 December. If you not participated in previous stages, you need to register before 27 November.
#Solana

The Akashian Challenge Phase 3 will launch on Monday 30 November and run for two weeks. Prize fund 500k AKT (~250k USD). KYC required.
#Akash

Bluzelle started the second part of the incentivized testnet Swarm of Duty II. There is the three-tiered program for node runners and also actions for developers, bug hunters and so on.
#Bluzelle

BitCherry starts to register users and developers to the upcoming testnet. Prize fund 10 million BCHC coins.
#BitCherry

Crypto.com invited validators to the incentivized final Dry-Run before Mainnet launch, which will take place from January 18 to February 15.
Registration is open to 11 January 2021. Fill the form: http://noderunners.biz/r/cryptocom/
#Cryptocom

Oraichain announced validator program, which will be launched December 25 and finished January 26. For participation, you need to collateral 500 ORAI tokens (approx. 5000 USD for today) and start node. Only 50 nodes will be admitted. Weekly based rewards: 100 ORAI for node.
#Oraichain

From February 08 to March 15 Regen Network plans to hold next part of testnet, named Aplikiĝo.
#Regen

Concordium Testnet 4 will be launched on January 20th, it's the last iteration before mainnet. Prize fund 15M GTU tokens.
#Concordium

Desmos Network upgraded current running testnet Morpheus to version 13000. All participants must update nodes to the new version.
#Desmos

IRISNet started the second phase of DeFi and interchain testnet Bifrost. Rewards will be distributed in the form of NFT badges according to the percentage of achievement of tasks, which can be exchanged into tokens after mainnet starts.
Note, that it''s not Polkadot parachain Bifrost Finance, it is IRISNet Bifrost testnet.
#Iris

Oraichain again invites participants to Lunar-Testnet, which run from February 06 until February 19. To become one of 22 trusted validator, you must deposit 750 ORAI (more 25k USD for now). Registration will last until February 08.
#Oraichain

Oasis Protocol will launch incentivized testnet ParaTime in an early Q2. For starting node required CPU with SGX support.
#Oasis

Meter will start the new Warring Stakes testnet round on Monday, February 22 at 08:00 UTC. New participants must pass the KYC.
#Meter

Agoric started registration for the upcoming incentivized testnet. Action will be launched on March 22 with a limit of 150 participants and closed in June 2021. Agoric promises a prize fund of more than 1M tokens.
#Agoric

Yesterday Meter successfully launched a fully-featured mainnet with staking and on-chain auctions.
If you do not plan to start your own validator node, but want to participate in Meter staking (locked tokens also may be staked), we invite you to delegate to our node. Noderunners validator provides high stability, which has been proven in past testnets.
The minimal staking amount is 100 MTRG, unbonding period - 7 days.
Complete staking guide:
https://docs.meter.io/full-node-and-validation/staking-mtrg-how-to-stake-and-staking-details
#Meter

Today at 16:00 UTC Stargaze will start the incentivized testnet Bellatrix-1. The approx duration of this Cosmos SDK based testnet is 1-2 weeks. Max rewards 1500-2000 genesis tokens.
#Stargaze

Decentralized music streaming platform Bitsong successfully started mainnet. We are one of Bitsong network validators. You can delegate your BTSG tokens to our node and receive a stable income from staking.
#Bitsong

And another raising mainnet of this week - Sentinel decentralized VPN network. Mainnet launched and we in a list of validators. Invite you to start staking with us, APY promises to be high.
Do not hesitate to ask, if you don't know how to buy and stake. We will provide complete staking guides with a little bit later.
#Sentinel

Started Phase 4 of the INT Chain ‘Titans’ incentivized testnet. Participants limited to 25 validator nodes. The prize fund for the technical part - 800K INT tokens. This testnet phase will finish on 12 May.
#INT

Yesterday Kira started public testnet, which include incentivized part. To apply to participation you need to start your node and fill out a registration form. The prize fund and procedure of calculating rewards are not known yet.
#Kira

The Desmos incentivized testnet will end on April 16 2021 with the start of a new testnet Morpheus “Apollo”. This is the last step before start mainnet.
#Desmos