<s>
was	O
a	O
free-to-play	O
multiplayer	B-Application
online	I-Application
game	I-Application
developed	O
and	O
published	O
by	O
Bandai	O
Namco	O
for	O
the	O
Wii	B-Device
U	I-Device
.	O
</s>
<s>
The	O
game	O
was	O
distributed	O
via	O
Nintendo	B-Application
eShop	I-Application
,	O
and	O
took	O
advantage	O
of	O
the	O
Nintendo	B-Application
Network	I-Application
.	O
</s>
<s>
The	O
game	O
was	O
announced	O
on	O
14	O
January	O
2015	O
,	O
under	O
its	O
tentative	O
title	O
Project	B-Application
Treasure	I-Application
,	O
via	O
that	O
month	O
's	O
Nintendo	O
Direct	O
presentation	O
in	O
all	O
major	O
regions	O
.	O
</s>
<s>
Producer	O
Harada	O
was	O
featured	O
in	O
a	O
segment	O
opening	O
up	O
about	O
a	O
game	O
they	O
were	O
working	O
on	O
exclusively	O
for	O
Wii	B-Device
U	I-Device
.	O
</s>
<s>
The	O
game	O
is	O
a	O
free-to-play	O
online	O
,	O
four-player	O
co-operative	O
action	O
title	O
which	O
any	O
Wii	B-Device
U	I-Device
owner	O
with	O
a	O
Nintendo	B-Application
Network	I-Application
ID	O
could	O
download	O
and	O
join	O
in	O
,	O
provided	O
their	O
console	O
is	O
always	O
online	O
.	O
</s>
<s>
Harada	O
then	O
concluded	O
he	O
was	O
unable	O
to	O
disclose	O
the	O
game	O
's	O
official	O
title	O
or	O
release	O
date	O
at	O
that	O
time	O
,	O
but	O
he	O
gave	O
away	O
the	O
tentative	O
title	O
being	O
"	O
Project	B-Application
Treasure	I-Application
"	O
and	O
confirmed	O
"	O
[	O
they	O
are ]	O
working	O
very	O
hard	O
on	O
it.	O
"	O
</s>
<s>
On	O
31	O
May	O
2015	O
,	O
during	O
the	O
Japanese	O
Nintendo	O
Direct	O
presentation	O
,	O
Nintendo	O
released	O
a	O
gameplay	O
trailer	O
,	O
featuring	O
four	O
unique	O
characters	O
fighting	O
zombies	B-Application
in	O
fast-paced	O
melee	O
combat	O
within	O
a	O
labyrinth	O
to	O
find	O
the	O
treasure	O
.	O
</s>
<s>
On	O
28	O
August	O
2015	O
,	O
Bandai	O
Namco	O
Entertainment	O
officially	O
launched	O
the	O
game	O
's	O
Japanese	O
website	O
and	O
released	O
a	O
new	O
trailer	O
,	O
revealing	O
the	O
game	O
's	O
final	O
title	O
as	O
Lost	B-Application
Reavers	I-Application
,	O
as	O
well	O
as	O
many	O
other	O
details	O
.	O
</s>
<s>
The	O
game	O
is	O
powered	O
by	O
Unreal	B-Operating_System
Engine	I-Operating_System
.	O
</s>
<s>
Japanese	O
Wii	B-Device
U	I-Device
owners	O
were	O
able	O
to	O
participate	O
in	O
a	O
public	O
beta	O
run	O
between	O
3	O
and	O
13	O
September	O
,	O
after	O
which	O
the	O
title	O
was	O
released	O
commercially	O
on	O
2	O
December	O
2015	O
.	O
</s>
<s>
Lost	B-Application
Reavers	I-Application
received	O
"	O
generally	O
unfavorable	O
reviews	O
"	O
from	O
critics	O
,	O
garnering	O
an	O
aggregate	O
score	O
of	O
46/100	O
on	O
review	O
aggregator	O
Metacritic	O
.	O
</s>
