LogFAQs > #924779491

They are currently giving away 2 random 5* Heroes and 2 random 5* artifacts as compensation.

The game has a built in reroller too. Basically your initial 10 summon you can choose to keep or reroll and it lets you do this up to a max of 30 times (and if you're not happy you can reset the account). So essentially if you start right now you would be starting with 3x 5* heroes and 2x 5* Artifacts. The rates on 5* Heroes are usually 1.25% and the rate on 5* Artifact are usually 1.75% (these are without rate ups) so this is a crazy generous start for them to give you.

It takes about 5-10 mins to get to the free 5* Heroes and Artifacts and about 25 mins to get to the first 10 summon which it lets you reroll.

I haven't played a lot of games similar to this but google says it is similar to Azur Lane, Dragalia Lost, Brave Exvius and Fate Grand Order (first 4 it lists)

Main website - https://epic7.smilegatemegaport.com/world
Reddit - https://www.reddit.com/r/EpicSeven/

Tier List - https://docs.google.com/spreadsheets/d/11mwHFlxPpIFu24sRxvcK1ZktkjvBQg1oTv035OSp_OI/htmlview?sle=true#

Note that you can't get every 5* in these freebie summons. Only Water, Earth and Fire heroes and excluding limited. I'm only 3 weeks in but I think the limited summons under those elements are Baiken, Diene, Dizzy, Zeno, Sol, Luna